Exhibit 4.33 E-1

Execution Copy

TABLE OF CONTENTS

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LIST OF EXHIBITS AND SCHEDULES

FOURTH AMENDED AND RESTATED CREDIT AGREEMENT

This FOURTH AMENDED AND RESTATED CREDIT AGREEMENT (“Agreement”) is entered into as of January 17, 2013, among CLEAN HARBORS, INC., a Massachusetts corporation (the “U.S. Borrower”), CLEAN HARBORS INDUSTRIAL SERVICES CANADA, INC., an Alberta corporation (the “Canadian Borrower” and, together with the U.S. Borrower, the “Borrowers”), each lender from time to time party hereto (collectively, the “Lenders” and individually, a “Lender”), and BANK OF AMERICA, N.A., as Administrative Agent (in such capacity, together with its successors and assigns appointed pursuant to Section 12.8, the “Agent”).

R E C I T A L S:

WHEREAS, the U.S. Borrower, the Canadian Borrower, certain Lenders, and Bank of America, N.A., as administrative agent, are party to that certain Third Amended and Restated Credit Agreement dated as of May 31, 2011 (as amended, modified and supplemented from time to time prior to the date hereof, the “Existing Credit Agreement”);

WHEREAS, the Borrowers have requested that the Agent and the Lenders agree to amend and restate the Existing Credit Agreement as set forth herein, and the Agent and the Lenders are willing to do so on the terms and conditions set forth herein.

NOW, THEREFORE, for the mutual considerations contained in this Agreement, the Borrowers, the Lenders and the Agent agree as follows:

SECTION 1.  DEFINITIONS; RULES OF CONSTRUCTION

1.1                               Definitions.   As used herein, the following terms have the meanings set forth below:

Account Debtor: a Person obligated under an Account, Chattel Paper or General Intangible.

Accounts Collateral: the U.S. Accounts Collateral and the Canadian Accounts Collateral.

Acquired Debt: Debt of a Person or any of its Subsidiaries:

(a)                                 existing at the time such Person becomes a Subsidiary of the U.S. Borrower or merges, consolidates or amalgamates with the U.S. Borrower or any of its Subsidiaries, or

(b)                                 assumed in connection with the acquisition of assets from such Person,

in each case, not incurred by such Person in connection with, or in contemplation of, such Person becoming a Subsidiary of the U.S. Borrower or such acquisition, merger or consolidation.

Adjustment Date: as defined in Section 2.1.7(a).

Affiliate: with respect to any Person, (a) another Person that directly, or indirectly through one or more intermediaries, Controls or is Controlled by or is under common Control with the Person specified or (b) any Person with (x) the same general partner, manager or

investment manager as such Person or (y) a general partner, manager or investment manager affiliated with such general partner, manager or investment manager of such Person.

Agent: as defined in the preamble to this Agreement.

Agent Indemnitees: the Agent, its Affiliates and their officers, directors, employees, attorneys and agents.

Agent Professionals: attorneys, accountants, appraisers, auditors, business valuation experts, environmental engineers or consultants, turnaround consultants, and other professionals and experts retained by the Agent.

AML Legislation: as defined in Section 14.17(b).

Anti-Terrorism Laws: as defined in Section 9.1.28(a).

Applicable Law: collectively, all international, foreign, Federal, state, provincial, and local statutes, treaties, rules, guidelines, regulations, ordinances, codes and administrative or judicial precedents or authorities, including the interpretation or administration thereof by any Governmental Authority charged with the enforcement, interpretation or administration thereof, and all applicable administrative orders, directed duties, requests, licenses, authorizations and permits of, and agreements with, any Governmental Authority, in each case whether or not having the force of law.

Applicable Lenders: with respect to the U.S. Borrower, the U.S. Lenders, and with respect to the Canadian Borrower, the Canadian Lenders.

Applicable Margin: with respect to any Type of Loan and such other Obligations as are specified below, the respective margin set forth below, as determined by reference to the Consolidated Fixed Charge Coverage Ratio and, if applicable, Average Liquidity, in each case as calculated as of the last day of the Fiscal Quarter then most recently ended:

The Applicable Margin shall be subject to increase or decrease upon receipt by the Agent pursuant to Section 10.1.1(a) or (b) of the financial statements and corresponding Compliance Certificate for the then most recently ended Fiscal Quarter or Fiscal Year based upon the

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Consolidated Fixed Charge Coverage Ratio and, if applicable, Average Liquidity, in each case as determined as of the last day of the period then ended, which change shall be effective on the first day of the calendar month following receipt thereof; provided, however, from the Closing Date to the first day of the month following the date on which the financial statements and corresponding Compliance Certificate shall have been delivered to the Agent pursuant to Section 10.1.1(b) for the fiscal quarter ending March 31, 2013, the Applicable Margin shall be determined by reference to Level IB.  If, by the first day of a month, any financial statements and Compliance Certificate due in the preceding month have not been received, then, at the option of the Agent or Required Lenders, the Applicable Margin shall be determined as if Level III were applicable from such day until such financial statements or Compliance Certificate, as applicable, are received.

Applicable Property: any Real Estate owned or leased by the U.S. Borrower or any U.S. Domiciled Loan Party which, in the good faith determination of the U.S. Borrower’s Board of Directors, and subject to the prior written consent of the Agent, is determined to be (i) not Real Estate on which the Agent wishes to acquire or retain a Mortgage, (ii) not needed for the conduct of the Permitted Business of the U.S. Borrower and its Subsidiaries, and (iii) more beneficially used by the U.S. Borrower or such U.S. Domiciled Loan Party if contributed in kind by the U.S. Borrower or such U.S. Domiciled Loan Party to an Applicable Property Entity.

Applicable Property Entity: a Person that is not the U.S. Borrower or a Subsidiary thereof that is established or exists for the purpose of holding and/or operating one or more Applicable Property.

Approved Fund: any Person (other than a natural person) that is engaged in making, purchasing, holding or otherwise investing in commercial loans and similar extensions of credit in its ordinary course of activities, has the capacity to fund Revolver Loans hereunder and is administered or managed by a Lender, an entity that administers or manages a Lender, or an Affiliate of either.

Assignment and Acceptance: an assignment agreement between a Lender and an Eligible Assignee (and, to the extent required by the definition of “Eligible Assignee,” consented to by the Loan Party Agent), in the form of Exhibit D.

Assignment of Claims Act: the Assignment of Claims Act of 1940, 31 U.S.C. § 3727, 41 U.S.C. § 15, as amended.

Attributable Debt: on any date, in respect of any Capital Lease of any Person, the capitalized amount thereof that would appear on a balance sheet of such Person prepared as of such date in accordance with GAAP.

Audited Financial Statements: the audited consolidated balance sheet of the U.S. Borrower and its Subsidiaries for the Fiscal Year ended December 31, 2011, and the related consolidated statements of income, cash flows and stockholders’ equity for such Fiscal Year of the U.S. Borrower and its Subsidiaries, including the notes thereto.

Availability Reserve: the U.S. Availability Reserve or the Canadian Availability Reserve, as the context may require.

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Average Liquidity: as of any date of determination, the average daily sum, without duplication, of (a) Liquidity and (b) the Loan Parties’ unrestricted cash on hand (as demonstrated to the reasonable satisfaction of the Agent and specifically excluding any cash on hand included in the calculation of Liquidity) for the immediately preceding thirty (30) days prior to such date.

Bank of America: Bank of America, N.A., a national banking association, and its successors and assigns.

Bank of America (Canada): Bank of America, N.A. (acting through its Canada branch).

Bank of America Indemnitees: Bank of America, its Affiliates and their officers, directors, employees, attorneys and agents.

Bank Product: any of the following products, services or facilities extended to any Loan Party by a Lender or any of its Affiliates: (a) Cash Management Services; (b) commercial credit card and merchant card services; and (c) other banking products, purchase cards, leases or services as may be requested by any Loan Party, other than Letters of Credit and Hedging Agreements; provided, however, that for any of the foregoing to be included as an “Obligation” for purposes of a distribution under Section 5.6.1, the Lender or Affiliate providing such Bank Product and the Loan Party Agent must have previously provided written notice to the Agent of (i) the existence of such Bank Product, (ii) the recommended maximum dollar amount of obligations arising thereunder to be included as a Canadian Bank Product Reserve or U.S. Bank Product Reserve, as applicable (“Bank Product Amount”), and (iii) the methodology to be used by such parties in determining the Bank Product Debt owing from time to time; provided, however, that no such notice shall be required with respect to any Bank Products provided by Bank of America or its Affiliates.  The Bank Product Amount may be changed from time to time by the Agent (with respect to Bank Products provided by Bank of America or its Affiliates) or upon written notice to the Agent by the Lender or Affiliate providing the related Bank Product and Loan Party Agent.  No additional Bank Product Amount may be voluntarily established or increased by the Loan Parties at any time that a Default or Event of Default exists, or if a reserve in such amount would cause an Overadvance.

Bank Product Amount: as defined in the definition of Bank Product.

Bank Product Debt: Debt and other obligations of a Loan Party relating to Bank Products.

BIA: the Bankruptcy and Insolvency Act, R.S.C. 1985, c.B-3, as amended.

Board of Governors: the Board of Governors of the Federal Reserve System.

Borrowed Money: with respect to any Loan Party or Subsidiary of a Loan Party, without duplication, its (a) Debt that (i) arises from the lending of money by any Person to such Loan Party or Subsidiary, (ii) is evidenced by notes, drafts, bonds, debentures, credit documents or similar instruments, (iii) accrues interest or is a type upon which interest charges are customarily paid (excluding trade payables owing in the Ordinary Course of Business), or (iv) was issued or assumed as full or partial payment for Property; (b) Capital Leases; (c) reimbursement obligations with respect to letters of credit; and (d) guaranties of any Debt of the foregoing types owing by another Person; provided, however, that “Borrowed Money” shall not include (1) trade payables and expenses owing in the Ordinary Course of Business and (2) amounts owing under

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commercial and merchant card service programs to the extent such amounts are directly or indirectly for the payment of trade payables incurred in the Ordinary Course of Business.

Borrower Materials: Borrowing Base information, reports, financial statements and other materials delivered by the Borrowers hereunder, as well as other Reports and information provided by the Agent to the Lenders.

Borrowers: as defined in the preamble to this Agreement.

Borrowing: a group of Loans of one Type that are made on the same day or are converted into Loans of one Type on the same day.

Borrowing Base: the Canadian Borrowing Base and/or the U.S. Borrowing Base, as the context requires.

Borrowing Base Certificate: a certificate, in form attached as Exhibit G or otherwise in form and substance satisfactory to the Agent, by which the Loan Party Agent certifies calculation of any Borrowing Base.

Business Day: any day excluding Saturday, Sunday and any other day that is a legal holiday under the laws of The Commonwealth of Massachusetts or is a day on which banking institutions located in such state are closed; and when used with reference to (i) a LIBOR Loan, shall also exclude any day on which banks are not open for the transaction of banking business in London, United Kingdom and (ii) a Canadian Revolver Loan, shall also exclude a day on which banks in Toronto, Ontario, Canada are not open for the transaction of banking business.

Calculation Date:  as defined in Section 5.12.

CAM: as defined in Section 14.11(a)(i).

CAM Exchange: as defined in Section 14.11(a)(ii).

CAM Exchange Date: as defined in Section 14.11(a)(iii).

CAM Percentage: as defined in Section 14.11(a)(iv).

Canadian Accounts Collateral: “Collateral” as defined in the Canadian Security Agreement.

Canadian Auto-Extension Letter of Credit: as defined in Section 2.3.1(e).

Canadian Availability: as of any date of determination, the Canadian Borrowing Base as of such date of determination minus the Canadian Revolver Exposure on such date of determination.

Canadian Availability Reserve: as of the date of determination, such amount as the Agent may from time to time establish and revise in good faith reducing the amount of the Canadian Revolver Loans and Canadian L/C Obligations which would otherwise be available to the Canadian Borrower under the lending formula provided for herein: (a) to reflect events, conditions, contingencies or risks which, as determined by the Agent in good faith, adversely affect, or would have a reasonable likelihood of adversely affecting, (i) the Canadian Facility

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Collateral, (ii) the assets, business or prospects of any Canadian Domiciled Loan Party, or (iii) the security interest, hypothecs and other rights of the Agent in the Canadian Facility Collateral; (b) to reflect the Agent’s good faith belief that any collateral report or financial information furnished by or on behalf of any Canadian Domiciled Loan Party to the Agent is or may have been incomplete, inaccurate or misleading in any material respect; (c) to reflect the Canadian Secured Hedging Reserve; (d) in respect of any state of facts which the Agent determines in good faith constitutes a Default or Event of Default; (e) to reflect the Agent’s good faith estimate of the amount necessary to reflect changes in applicable currency exchange rates or currency exchange markets; (f) to reflect the Canadian Dilution Reserve Percentage; (g) to reflect the Canadian Bank Product Reserve; (h) to reflect all accrued Royalties of the Canadian Domiciled Loan Parties, whether or not then due and payable by such Canadian Domiciled Loan Party; (i) to reflect the aggregate amount of liabilities secured by Liens upon any Accounts of the Canadian Domiciled Loan Parties that are senior to the Agent’s Liens (but imposition of any such reserve shall not waive an Event of Default arising therefrom); (j) to reflect the Canadian Priority Payables Reserve; (k) to reflect the Wage Earner Protection Act Reserve; (l) to reflect deferred revenue set forth on the consolidated balance sheet of the U.S. Borrower and its Subsidiaries or as otherwise determined by the Agent; and (m) to reflect any Other Permitted Canadian Debt that sixty (60) days prior to the maturity date thereof has not been refinanced or defeased on terms reasonably satisfactory to the Agent.  To the extent the Agent may revise the lending formulas used to determine the Canadian Borrowing Base or establish new criteria or revise existing criteria for Canadian Eligible Accounts so as to address any circumstances, condition, event or contingency in a manner satisfactory to the Agent, the Agent shall not establish a Canadian Availability Reserve for the same purpose.  The amount of the Canadian Availability Reserve established by the Agent shall have a reasonable relationship to the event, condition or other matter which is the basis for such reserve as determined by the Agent in good faith.

Canadian BA Rate: with respect to each Interest Period for a Canadian BA Rate Loan, the rate of interest per annum equal to the average rate applicable to Canadian Dollar bankers’ acceptances having an identical or comparable term as the proposed Canadian BA Rate Loan displayed and identified as such on the display referred to as the “CDOR Page” (or any display substituted therefor) of Reuter Monitor Money Rates Service as at approximately 10:00 a.m.  Toronto time on such day (or, if such day is not a Business Day, as of 10:00 a.m. Toronto time on the immediately preceding Business Day), plus five (5) basis points, provided that if such rate does not appear on the CDOR Page at such time on such date, the rate for such date will be the annual discount rate (rounded upward to the nearest whole multiple of 1/100 of 1%) as of 10:00 a.m. Eastern time on such day at which a Canadian chartered bank listed on Schedule 1 of the Bank Act (Canada) as selected by the Agent is then offering to purchase Canadian Dollar bankers’ acceptances accepted by it having such specified term (or a term as closely as possible comparable to such specified term), plus five (5) basis points.

Canadian BA Rate Loan: a Canadian Revolver Loan, or portion thereof, funded in Canadian Dollars and bearing interest calculated by reference to the Canadian BA Rate.

Canadian Bank Product Reserve: the aggregate amount of reserves, as established by the Agent from time to time in its commercially reasonable credit judgment to reflect the reasonably anticipated liabilities in respect of the then outstanding Bank Product Debt of the Canadian Domiciled Loan Parties and their Subsidiaries.

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Canadian Base Rate: for any day, the rate of interest in effect for such day as publicly announced from time to time by Bank of America (Canada) in Toronto, Ontario as its “base rate” (the “base rate” being a rate set by Bank of America (Canada) based on various factors including costs and desired return of Bank of America (Canada), general economic conditions and other factors, and used as a reference point for pricing loans in Dollars made at its “base rate”, which may be priced at, above or below such announced rate.)  Any change in the “base rate” announced by Bank of America (Canada) shall take effect at the opening of business on the day specified in the public announcement of such change.  Each interest rate based upon the Canadian Base Rate shall be adjusted simultaneously with any change in the “base rate”.  In the event that Bank of America (Canada) (including any successor or assignee) does not at any time publicly announce a “base rate”, then “Canadian Base Rate” shall mean the “base rate” publicly announced by a Schedule 1 chartered bank in Canada selected by Agent.

Canadian Base Rate Loan: a Canadian Revolver Loan, or portion thereof, funded in Dollars and bearing interest calculated by reference to the Canadian Base Rate.

Canadian Borrower: as defined in the preamble to this Agreement.

Canadian Borrowing Base: on any date of determination, an amount equal to the lesser of (a) the Maximum Canadian Facility Amount; and (b) the sum, without duplication, of (i) 85% of the Net Amount of Canadian Eligible Accounts (including all Municipal Government Accounts that are Canadian Eligible Accounts), subject to a cap of $10,000,000 on unbilled Canadian Eligible Accounts, plus (ii) the lesser of (A) eighty-five percent (85%) of the Net Amount of Canadian Government Accounts that are Canadian Eligible Accounts (which amount may include Accounts that are not Canadian Eligible Accounts solely because such accounts are not compliant with the Financial Administration Act) and (B) $2,000,000, plus (iii) one hundred percent (100%) of Canadian Eligible Pledged Cash, minus (iv) the Canadian Availability Reserve.

Canadian Dilution Percentage: a percentage, calculated at the end of each field examination with respect to the Canadian Facility Collateral by the Agent, reflecting the amount of dilution of Canadian Eligible Accounts that should (based on the results of such field examination), in the determination of the Agent, acting reasonably, be taken into account when calculating the Canadian Borrowing Base; provided that each such percentage shall be represented by a whole number without decimal places.  The Canadian Dilution Percentage shall remain in effect from and after each such field examination until the completion of a new field examination and the determination by the Agent of a new Canadian Dilution Percentage, at which time the Canadian Dilution Percentage shall reflect such new field examination and the determination by the Agent of such new Canadian Dilution Percentage.

Canadian Dilution Reserve Percentage: as of any time, the Canadian Dilution Percentage as of such time minus five percent (5%); provided that if the Canadian Dilution Percentage as of such time is below five percent (5%), then the Canadian Dilution Reserve Percentage as of such time shall be deemed to be zero percent (0%).

Canadian Dollars or Cdn$: the lawful currency of Canada.

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Canadian Domiciled Loan Party: the Canadian Borrower and each Canadian Subsidiary of the U.S. Borrower now or hereafter party to this Agreement or any other Loan Document as a Loan Party, and “Canadian Domiciled Loan Parties” means all such Persons, collectively.

Canadian Dominion Account: a special account established by the Canadian Domiciled Loan Parties at Bank of America (Canada) or another bank acceptable to the Agent, over which the Agent has dominion and control (which may be exercised during a Cash Trigger Period).

Canadian Eligible Accounts: Accounts of the Canadian Borrower and the other Canadian Domiciled Loan Parties subject to the Lien of the Agent, the value of which shall be determined by taking into consideration, among other factors, their book value determined in accordance with GAAP; provided, however, that none of the following classes of Accounts shall be deemed to be Canadian Eligible Accounts:

(a)                                 Accounts that do not arise out of sales of goods or rendering of services in the ordinary course of the Canadian Borrower’s or the relevant Canadian Domiciled Loan Party’s business;

(b)                                 Accounts payable other than in Dollars or in Canadian Dollars or that are otherwise on terms other than those normal or customary in the Canadian Borrower’s or the relevant Canadian Domiciled Loan Party’s business;

(c)                                  Accounts more than ninety (90) days past the original invoice date;

(d)                                 Accounts owing from any Person that is an Affiliate of a Loan Party;

(e)                                  Accounts arising out of sales to Account Debtors outside the United States and Canada, unless the Account is supported by a letter of credit (the original of which is delivered to and directly drawable by the Agent) or credit insurance satisfactory in all respects to the Agent;

(f)                                   Accounts owing from any Person from which an aggregate amount of fifty percent (50%) or more of the Accounts owing therefrom are otherwise ineligible;

(g)                                  Accounts in respect of Contra Accounts;

(h)                                 Accounts owing by a Government Authority (other than Municipal Government Accounts that, but for this clause (h), are Canadian Eligible Accounts), unless such Accounts are Canadian Government Accounts and the Canadian Borrower or the relevant Canadian Domiciled Loan Party has complied, to the satisfaction of the Agent, with the Financial Administration Act; provided, that Accounts that are not compliant with the Financial Administration Act may be included in the Canadian Borrowing Base as provided in clause (b) of the definition of Canadian Borrowing Base;

(i)                                     Accounts in excess of twenty percent (20%) of all Canadian Eligible Accounts owing to any Account Debtor or Affiliate of such Account Debtor whose total Accounts comprise greater than twenty percent (20%) of all Canadian Eligible Accounts;

(j)                                    Accounts owing from any Person that (i) has disputed liability for any Accounts owing from such Person or (ii) has otherwise asserted any claim, demand or liability against any Loan Party or any Subsidiary thereof, whether by action, suit, counterclaim or otherwise;

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provided, that for purposes of subclause (j)(i), such Accounts shall be excluded only to the extent of the amounts being disputed by such Person at any date of determination;

(k)                                 Accounts owing from any Person that is or becomes the subject of any action or proceeding of a type described in Section 11.1(f), or admits in writing an inability, or fails generally to pay, its debts as they become due, or is not Solvent, or is subject to any country sanctions program or specially designated nationals list maintained by the Office of Foreign Assets Control of the U.S. Treasury Department;

(l)                                     Accounts (i) owing from any Person that is also a supplier to or creditor of a Loan Party or any Subsidiary thereof unless such Person has waived any right of setoff in a manner acceptable to the Agent or (ii) representing any manufacturer’s or supplier’s credits, discounts, incentive plans or similar arrangements entitling any Loan Party or any Subsidiary thereof to discounts on future purchases therefrom;

(m)                             Accounts arising out of sales on a bill-and-hold, progress billing, guaranteed sale, sale-or-return, sale on approval or consignment basis or subject to any right of return, setoff or charge back;

(n)                                 Accounts with respect to which the representations and warranties set forth in Section 3 of the Canadian Security Agreement applicable to Accounts are not correct;

(o)                                 Accounts in respect of which the Canadian Security Agreement, after giving effect to the related filings of financing statements that have then been made, if any, does not or has ceased to create a valid and perfected first priority lien or security interest in favor of the Agent, on behalf of the Canadian Facility Secured Parties, securing the Canadian Facility Obligations; and

(p)                                 Accounts owing from any Person that is located in a state that requires the filing of a business activity report or similar report and with respect to which the Canadian Borrower or other Canadian Domiciled Loan Party, as applicable, has not actually filed such a report.

Canadian Eligible Pledged Cash: cash or Cash Equivalents subject to a legal, valid and enforceable first priority Lien in favor of the Agent on behalf of the Canadian Facility Secured Parties and held in a special account established at Bank of America (Canada) and over which the Agent has dominion and control (which may be exercised during a Cash Trigger Period); provided, that solely for purposes of determining compliance with the provisions of clause (h) of the definition of Permitted Acquisition, Section 10.2.3(k), Section 10.2.6(b) and (c), and Section 10.2.14, which are based, in whole or in part, on the level of Canadian Eligible Pledged Cash as of any specified date and during the forty-five (45) consecutive day period immediately preceding such specified date, Canadian Eligible Pledged Cash shall include cash held in such special account on such specified date even though all or a portion of such cash was transferred into such special account during such forty-five (45) day period.

Canadian Employee Plan: any payroll practice and other employee benefit plan, policy, program, agreement or arrangement, including retirement, pension, profit sharing, employment, individual consultant or other compensation agreement, collective bargaining agreement, bonus or other incentive compensation, retention, stock purchase, equity or equity-based compensation, deferred compensation, change in control, severance, sick leave, vacation, loans, salary continuation, hospitalization, health, life insurance, educational assistance or other fringe benefit

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or perquisite plan, policy, agreement which is or was sponsored, maintained or contributed to by, or required to be contributed to by, a Canadian Domiciled Loan Party, or with respect to which a Canadian Domiciled Loan Party has or could have any obligation or liability, contingent or otherwise.

Canadian Facility Collateral: Collateral that now or hereafter secures (or is intended to secure) any of the Canadian Facility Obligations, including Property of the U.S. Domiciled Loan Parties pledged to secure their Obligations under their Guarantee of the Canadian Facility Obligations.

Canadian Facility Guarantee: each guarantee agreement at any time executed by a Canadian Facility Guarantor in favor of the Agent guaranteeing all or any portion of the Canadian Facility Obligations.

Canadian Facility Guarantor: each Canadian Domiciled Loan Party (other than the Canadian Borrower) and U.S. Domiciled Loan Party and each other Person (if any) who guarantees payment and performance of any Canadian Facility Obligations.

Canadian Facility Loan Party: the Canadian Borrower or a Canadian Facility Guarantor, as applicable.

Canadian Facility Obligations: all Obligations of the Canadian Facility Loan Parties, including, without limiting the generality of the foregoing, the payment of the Canadian Revolver Notes (but excluding, for the avoidance of doubt, the U.S. Facility Obligations).

Canadian Facility Secured Parties: the Agent, the Canadian Issuing Bank, the Canadian Lenders (including any Canadian Lender or Affiliate thereof providing any products under Hedging Agreements to any Canadian Facility Loan Party), providers of Bank Products to the Canadian Facility Loan Parties, and the Lead Arranger.

Canadian Government Account: an Account with respect to which the Account Debtor is the federal government of Canada or any Crown corporation, department, agency or instrumentality of Canada.

Canadian Hedging Obligations: Hedging Obligations of a Canadian Domiciled Loan Party.

Canadian Incremental Commitments: with respect to the Canadian Incremental Facility, and as to each Canadian Lender, its obligation, if any, to (a) make Canadian Revolver Loans consisting of Canadian Incremental Loans to the Canadian Borrower pursuant to Section 2.1.8(b), and (b) purchase participations in Canadian LC Obligations, in an aggregate principal amount at any one time outstanding not to exceed the amount set forth under the heading “Canadian Incremental Commitment” opposite such Canadian Lender’s name on Schedule 1.1(a) or in the Assignment and Acceptance pursuant to which such Canadian Lender becomes a party hereto, as applicable, in each case, as such amount may be adjusted from time to time in accordance with this Agreement.

Canadian Incremental Facility: the aggregation of Canadian Incremental Commitments of one or more Canadian Lenders which are made available to the Canadian Borrower and become effective on the same date pursuant to an Incremental Loan Amendment.

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Canadian Incremental Loan: as defined in Section 2.1.8(b).

Canadian Issuing Bank: each of Bank of America (Canada) or an Affiliate of Bank of America (Canada), or JPMorgan Chase Bank, N.A. or its branches or Affiliates, in each case as an issuer of Letters of Credit under this Agreement.

Canadian LC Obligations: the sum (without duplication) of (a) all amounts owing by the Canadian Borrower for any drawings under Letters of Credit; (b) the stated amount of all outstanding Letters of Credit issued for the account of the Canadian Borrower; and (c) all fees and other amounts owing with respect to Letters of Credit issued for the account of the Canadian Borrower.

Canadian Lenders: Bank of America (Canada) and each other Lender that has issued a Canadian Revolver Commitment (provided that such Person or an Affiliate of such Person also has a U.S. Revolver Commitment), including Bank of America (Canada) in its capacity as a provider of Canadian Swingline Loans.  Each Canadian Lender shall be a Canadian Qualified Lender.

Canadian Letter of Credit Sublimit: $75,000,000.

Canadian Letters of Credit: as defined in Section 2.3.1.

Canadian Multi-Employer Plan: each multi-employer plan, within the meaning of the Regulations under the Income Tax Act (Canada).

Canadian Non-Extension Notice Date: as defined in Section 2.3.1(e).

Canadian Overadvance: as defined in Section 2.1.5.

Canadian Overadvance Loan: a Loan made to the Canadian Borrower when a Canadian Overadvance exists or is caused by the funding thereof.

Canadian Overadvance Loan Balance: on any date, the amount by which the aggregate Canadian Revolver Exposure exceeds the amount of the Canadian Borrowing Base on such date.

Canadian Pension Plan: a “registered pension plan,” as defined in the Income Tax Act (Canada) and any other pension plan maintained or contributed to by, or to which there is or may be an obligation to contribute by, any Loan Party in respect of its Canadian employees or former employees, excluding, for greater certainty, a Canadian Multi-Employer Plan.

Canadian Perfection Certificate: a certificate in the form of Exhibit F-2 or any other form approved by the Agent, as the same shall be supplemented from time to time by a Canadian Perfection Certificate Supplement or otherwise.

Canadian Perfection Certificate Supplement:  a supplement to the Canadian Perfection Certificate in a form approved by the Agent.

Canadian Prime Rate: on any date, the sum of the highest of (a) a fluctuating rate of interest per annum equal to the rate of interest in effect for such day as publicly announced from time to time by Bank of America (Canada) as its “Prime Rate”, (b) the sum of 0.50% plus the

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Bank of Canada overnight rate, which is the rate of interest charged by the Bank of Canada on one-day loans to financial institutions, for such day, and (c) the sum of 1.00% plus the Canadian BA Rate for a thirty (30) day Interest Period as determined on such day.  The “Canadian Prime Rate” is a rate set by Bank of America (Canada) based upon various factors including the costs and desired return of Bank of America (Canada), general economic conditions and other factors, and is used as a reference point for pricing some loans, which may be priced at, above, or below such announced rate.  Any change in such rate announced by Bank of America (Canada) shall take effect at the opening of business on the day specified in the public announcement of such change.

Canadian Prime Rate Loan: a Canadian Revolver Loan, or portion thereof, funded in Canadian Dollars and bearing interest calculated by reference to the Canadian Prime Rate.

Canadian Priority Payables Reserve: on any date of determination, a reserve in such amount as the Agent may reasonably determine which reflects the unpaid (when due) or un-remitted (when due) payroll tax deductions, unpaid (when due) pension plan contributions, amounts in respect of unfunded pension liabilities and unfunded deficiencies in respect of any defined benefit pension plan, employment insurance premiums, amounts deducted for vacation pay, wages, workers’ compensation and other unpaid (when due) or unremitted (when due) amounts by any Canadian Domiciled Loan Party which would give rise to a Lien with priority under Applicable Law over the Lien of the Agent.

Canadian Qualified Lender: a financial institution that is listed on Schedule I, II, or III of the Bank Act (Canada), has received an approval to have a financial establishment in Canada pursuant to Section 522.21 of the Bank Act (Canada), or is not a foreign bank for purposes of the Bank Act (Canada), and if such financial institution is not resident in Canada and is not deemed to be resident in Canada with respect to any amounts received pursuant to this Agreement for purposes of Part XIII of the Income Tax Act (Canada), that financial institution deals at arm’s length with the Canadian Borrower for purposes of the Income Tax Act (Canada).

Canadian Reimbursement Date: as defined in Section 2.3.2(a).

Canadian Revolver Commitment: for any Canadian Lender, its obligation to make Canadian Revolver Loans and to issue Canadian Letters of Credit, in the case of Canadian Issuing Bank, or participate in Canadian LC Obligations (excluding amounts specified in clause (c) of such definition), in the case of the other Canadian Lenders, to the Canadian Borrower up to the maximum principal amount shown on Schedule 1.1(a), or as hereafter determined pursuant to each Assignment and Acceptance to which it is a party, as such Canadian Revolver Commitment may be adjusted from time to time in accordance with the provisions of Sections 2.1.4, 2.1.7 or 11.2.

Canadian Revolver Commitments: the aggregate amount of such commitments of all Canadian Lenders.

Canadian Revolver Commitment Adjustment: as defined in Section 2.1.7.

Canadian Revolver Commitment Termination Date: the earliest of (a) the U.S. Revolver Commitment Termination Date (without regard to the reason therefor), (b) the date on which the Loan Party Agent terminates or reduces to zero all of the Canadian Revolver Commitments pursuant to Section 2.1.4, and (c) the date on which the Canadian Revolver Commitments are

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terminated pursuant to Section 11.2.  From and after the Canadian Revolver Commitment Termination Date, the Canadian Borrower shall no longer be entitled to request a Canadian Revolver Commitment Adjustment pursuant to Section 2.1.7 hereof.

Canadian Revolver Exposure: on any date, an amount equal to the sum of the Dollar Equivalent of the Canadian Revolver Loans outstanding on such date plus the Canadian LC Obligations (excluding amounts specified in clause (c) of such definition) on such date.

Canadian Revolver Loan: a Revolver Loan made by Canadian Lenders to the Canadian Borrower pursuant to Section 2.1.1(b), and any Canadian Swingline Loan, which Revolver Loan shall, if denominated in Canadian Dollars, be either a Canadian BA Rate Loan or a Canadian Prime Rate Loan and, if denominated in Dollars, shall be either a Canadian Base Rate Loan or a LIBOR Loan, in each case as selected by the Canadian Borrower, and any Canadian Overadvance Loan and any Protective Advance made by the Agent as a Canadian Prime Rate Loan pursuant to Section 2.1.6.

Canadian Revolver Notes: the promissory notes, if any, executed by the Canadian Borrower in favor of each Canadian Lender to evidence the Canadian Revolver Loans funded from time to time by such Canadian Lender, which shall be in the form of Exhibit A-1 to this Agreement, together with any replacement or successor notes therefor.

Canadian Secured Hedging Obligations: all Canadian Hedging Obligations owing to any Canadian Facility Secured Party and with respect to which the applicable Canadian Domiciled Loan Party and the Canadian Facility Secured Party shall have delivered (except in the case of the Agent or any Affiliate of the Agent), at or prior to the time that the Hedging Agreement relating to such obligation is entered into or, if later, at the time that such Canadian Facility Secured Party becomes a party to this Agreement, written notice to the Agent (which notice shall be supplemented on a monthly basis or more frequently as the Agent may reasonably request) that such a transaction has been entered into, that it constitutes a Canadian Secured Hedging Obligation entitled to the benefits of the Security Documents, and of the Hedging Termination Value with respect to such Canadian Secured Hedging Obligations as of such date.

Canadian Secured Hedging Reserves: the aggregate amount of reserves, as established by the Agent from time to time in its commercially reasonable credit judgment, to reflect the reasonably anticipated Canadian Secured Hedging Obligations then provided or outstanding.

Canadian Security Agreement: collectively, each general security agreement and each deed of movable hypothec among any Canadian Domiciled Loan Party and the Agent, including, without limitation, that certain Security Agreement (Canadian Domiciled Loan Parties) dated as of May 31, 2011, among the Canadian Borrower, the other Canadian Domiciled Loan Parties party thereto and the Agent.

Canadian Subsidiary: a Subsidiary of the U.S. Borrower incorporated or organized under the laws of Canada or any province or territory of Canada.

Canadian Swingline Loan: any Borrowing of Canadian Prime Rate Loans made pursuant to Section 4.1.3(c).

Capital Expenditures: all expenditures made by a Loan Party or Subsidiary for the acquisition of any fixed assets, or any improvements, replacements, substitutions or additions

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thereto with a useful life of more than one year, and which are, or should be, reflected on the balance sheet of the Loan Parties and their Subsidiaries as “additions to plant, property and equipment” in accordance with GAAP, including the principal portion of Capital Leases, in each case, calculated in accordance with GAAP; provided that “Capital Expenditures” shall not include, to the extent otherwise included therein, (1) expenditures made to acquire replacement assets or repair fixed assets to the extent that such expenditures do not exceed the amount of insurance proceeds received in respect of the loss, damage or destruction of the same or similar fixed assets, (2) non-cash expenditures made to acquire fixed assets in a like-kind exchange to the extent that such expenditures represent the value of fixed assets transferred by such Loan Party or Subsidiary in such like-kind exchange, (3) expenditures made with (A) the proceeds of Debt, other than the proceeds of the Loans or short-term borrowings, or (B) the proceeds of any issuance of Equity Interests of any Loan Party or Subsidiary thereof to a Person other than a Loan Party or Subsidiary thereof, or (4) expenditures made in a Permitted Acquisition of assets constituting a line of business or a business division of another Person.

Capital Lease: any lease that is required to be capitalized for financial reporting purposes in accordance with GAAP.

Cash Collateralize: the delivery of cash or Cash Equivalents to the Agent, as security for the payment of Obligations, in an amount equal to (a) with respect to LC Obligations, 105% of the aggregate LC Obligations, and (b) with respect to any inchoate, contingent or other Obligations (including Obligations arising under Bank Products and Secured Hedging Obligations), the Agent’s good faith estimate of the amount that is due or could become due, including all fees and other amounts relating to such Obligations.  “Cash Collateralization” and “Cash Collateralized” have correlative meanings.

Cash Equivalents: (a) marketable obligations issued or unconditionally guaranteed by, and backed by the full faith and credit of, the United States or Canadian government, maturing within twelve (12) months of the date of acquisition; (b) marketable direct obligations issued by any state of the United States or province or territory of Canada, or any political subdivision of any such state, province or territory or any public instrumentality thereof, in each case maturing within twelve (12) months of the date of acquisition and having a rating of at least A from S&P or the equivalent thereof from Moody’s; (c) certificates of deposit, demand deposits, time deposits and bankers’ acceptances maturing within twelve (12) months of the date of acquisition, and overnight bank deposits, in each case which are issued by a commercial bank organized under the laws of the United States, Canada or any state or district of the United States or province or territory of Canada, rated A-1 (or better) by S&P or P-1 (or better) by Moody’s at the time of acquisition, and (unless issued by a Lender) not subject to offset rights; (d) repurchase obligations with a term of not more than thirty (30) days for underlying investments of the types described in clauses (a), (b) and (c) entered into with any bank meeting the qualifications specified in clause (c); (e) commercial paper rated A-1 (or better) by S&P or P-1 (or better) by Moody’s, and maturing within nine (9) months of the date of acquisition; and (f) shares of any money market fund that has substantially all of its assets invested continuously in the types of investments referred to above, has net assets of at least $500,000,000 and has the highest rating obtainable from either Moody’s or S&P.

Cash Management Services: any services provided from time to time by any Lender or any of its Affiliates to any Loan Party in connection with operating, collections, payroll, trust, or other depository or disbursement accounts, including automated clearinghouse, e-payable,

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electronic funds transfer, wire transfer, controlled disbursement, overdraft, depository, information reporting, lockbox and stop payment services.

Cash Trigger Period: the period commencing in any day that either (a) a Default or Event of Default occurs or (b) Liquidity is less than the greater of (i) $40,000,000 and (ii) ten percent (10%) of the Commitments.

Casualty Event: any involuntary loss of title, any involuntary loss of, damage to or any destruction of, or any condemnation or other taking (including by any Governmental Authority) of, any property of any Loan Party or any of its Subsidiaries.  “Casualty Event” shall include but not be limited to any taking of all or any part of any Real Estate of any Person or any part thereof, in or by condemnation or other eminent domain proceedings pursuant to any Applicable Law, or by reason of the temporary requisition of the use or occupancy of all or any part of any Real Estate of any Person or any part thereof by any Governmental Authority, civil or military, or any settlement in lieu thereof.

CCAA: the Companies’ Creditors Arrangement Act, R.S.C. 1985, c. C-36, as amended.

CERCLA: the Comprehensive Environmental Response Compensation and Liability Act (42 U.S.C. § 9601 et seq.), as amended.

CERCLIS:  the Comprehensive Environmental Response Compensation and Liability Information System maintained by the U.S. Environmental Protection Agency.

Change in Law:  the occurrence, after the date hereof, of (a) the adoption, taking effect or phasing in of any law, rule, regulation or treaty; (b) any change in any law, rule, regulation or treaty or in the administration, interpretation or application thereof; or (c) the making, issuance or application of any request, guideline, requirement or directive (whether or not having the force of law) by any Governmental Authority; provided, however, that “Change in Law” shall include, regardless of the date enacted, adopted or issued, all requests, guidelines, regulations, rules, requirements or directives (i) under or relating to the Dodd-Frank Wall Street Reform and Consumer Protection Act, or (ii) promulgated pursuant to Basel III by the Bank of International Settlements, the Basel Committee on Banking Supervision (or any similar authority) or any other Governmental Authority.

Change of Control:  any event or series of events by which:

(a)                                 except as may be permitted under Section 10.2.4, the transfer (in one transaction or a series of transactions) of all or substantially all of the assets of any Loan Party to any “person” or “group” (as such terms are used in Sections 13(d)(3) and 14(d) of the Securities Exchange Act of 1934);

(b)                                 except as may be permitted under Section 10.2.4, the liquidation or dissolution of any Loan Party or the adoption of a plan by the stockholders of any Loan Party relating to the dissolution or liquidation of any Loan Party;

(c)                                  the acquisition by any “person” or “group” (as such terms are used in Sections 13(d)(3) and 14(d) of the Securities Exchange Act of 1934), except for one or more Permitted Holders, of beneficial ownership, directly or indirectly of fifty percent (50%) or more of the voting power of the total outstanding voting stock of the U.S. Borrower;

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(d)                                 during any period of two (2) consecutive years, individuals who at the beginning of such period constituted the board of directors of the U.S. Borrower (together with any new directors who have appointed by any Permitted Holder, or whose nomination for election by the stockholders of the U.S. Borrower, as the case may be, was approved by a vote of at least sixty-six and two-thirds percent (66 2/3%) of the directors then still in office who were either directors at the beginning of such period or whose election or nomination for election was previously so approved) cease for any reason (other than death or cessation of legal capacity) to constitute a majority of the Board of Directors of the U.S. Borrower then still in office;

(e)                                  in the case of any Loan Party other than the U.S. Borrower, the U.S. Borrower or another Loan Party that owns beneficially and of record the voting stock of such Loan Party on the Closing Date shall cease to own beneficially and of record one hundred percent (100%) of the voting power of the total outstanding voting stock of such Loan Party or shall cease to control the appointment of the board of directors of each such Loan Party;

(f)                                   the occurrence of a change of control under any Material Debt; or

(g)                                  a “change of control” or any comparable term under, and as defined in, any Other Permitted Canadian Debt Documents, each Senior High Yield Indenture or any Other Secured Debt Agreement shall have occurred.

Claims: all claims, liabilities, obligations, losses, damages, penalties, judgments, proceedings, interest, costs and expenses of any kind (including remedial response costs, reasonable attorneys’ fees and Extraordinary Expenses) at any time (including after Full Payment of the Obligations, resignation or replacement of the Agent, or replacement of any Lender) incurred by or asserted against any Indemnitee in any way relating to (a) any Loans, Letters of Credit, Loan Documents, Borrower Materials, or the use thereof or transactions relating thereto, (b) any action taken or omitted to be taken by any Indemnitee in connection with any Loan Documents, (c) the existence or perfection of any Liens, or realization upon any Collateral, (d) exercise of any rights or remedies under any Loan Documents or Applicable Law, (e) failure by any Loan Party to perform or observe any terms of any Loan Document, or (f) any actual or alleged presence or Environmental Release or threatened Environmental Release of Hazardous Materials on, at, under or from any property owned, leased or operated by any Loan Party or Subsidiary of any Loan Party at any time, or any Environmental Claim related in any way to any Loan Party, in each case, including all costs and expenses relating to any investigation, litigation, arbitration or other proceeding (including an Insolvency Proceeding or appellate proceedings), whether or not the applicable Indemnitee is a party thereto.

Closing Date: as defined in Section 6.1.

Code: the Internal Revenue Code of 1986, as amended.

Collateral: all of each Loan Party’s right, title and interest in all Property of such Loan Party, subject to a Lien under, or purported to be subject to a Lien under, the Security Documents, that, in each case, now or hereafter secure (or is intended to secure) any of the Obligations.

Commitment: for any Lender, the aggregate amount of such Lender’s Facility Commitments.

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Commitments: the aggregate amount of all Facility Commitments, which amount shall be $400,000,000 on the Closing Date.

Compliance Certificate: a certificate, in form and substance reasonably satisfactory to the Agent, by which the Loan Party Agent, for and on behalf of the Loan Parties, certifies compliance with Section 10.2.11 (including the calculations thereof in reasonable detail) and lists all outstanding Bank Products and Hedging Agreements with Lenders (or their Affiliates) other than Bank of America (or its Affiliates).

Consolidated Adjusted EBITDA: at any date of determination, an amount equal to Consolidated Net Income of the U.S. Borrower and its Subsidiaries on a consolidated basis for the most recently completed Measurement Period, plus (a) the following to the extent deducted in calculating such Consolidated Net Income:  (i) Consolidated Interest Charges, (ii) the provision for Federal, state, provincial, local and foreign income taxes, (iii) depreciation and amortization expense, (iv) transaction expenses relating to the Transactions and the Safety-Kleen Acquisition not to exceed $10,000,000 in the aggregate, (v) losses on asset sales, disposals or abandonments (other than asset sales, disposals or abandonments in the ordinary course of business), and (vi) other non-recurring expenses reducing such Consolidated Net Income which do not represent a cash item in such period or any future period (in each case of or by the U.S. Borrower and its Subsidiaries for such Measurement Period) and minus (b) the following to the extent included in calculating such Consolidated Net Income:  (i) Federal, state, local and foreign income tax credits, (ii) gains on asset sales, disposals or abandonments (other than asset sales, disposals or abandonments in the ordinary course of business), and (iii) all non-cash items increasing Consolidated Net Income.

Consolidated Fixed Charge Coverage Ratio: at any date of determination and for the Measurement Period most recently ended, the ratio of (a) (i) Consolidated Adjusted EBITDA for such Measurement Period, less the sum of (ii) the aggregate amount of Federal, provincial, state, local and foreign income taxes paid or payable for such Measurement Period as determined in accordance with GAAP, net of refunds received (provided that such aggregate amount shall not be less than zero), (iii) the aggregate amount of all Capital Expenditures (other than those financed by Debt permitted under Section 10.2.2) for such Measurement Period, (iv) Environmental Expenditures for such Measurement Period, and (v) the aggregate amount of all Restricted Payments, in each case, of or by the U.S. Borrower and its Subsidiaries for such Measurement Period (except for any Restricted Payments made during such Measurement Period which are specifically permitted by clause (A), (B) or (C) of the proviso in Section 10.2.6), to (b) the sum of (i) Consolidated Interest Charges to the extent paid or payable in cash for such Measurement Period, and (ii) the aggregate principal amount of all regularly scheduled principal payments paid or payable with respect to Debt during such Measurement Period.

Consolidated Interest Charges: for any Measurement Period, (i) the sum of (a) all interest, premium payments, debt discount, fees, charges and related expenses in connection with Borrowed Money (including capitalized interest) or in connection with the deferred purchase price of assets, in each case to the extent treated as interest in accordance with GAAP, (b) all interest paid or payable with respect to discontinued operations (but, in the case of clauses (a) and (b), excluding (1) amortization of financing fees and original issue discount and (2) up to $28,000,000 of the write-off of deferred financing costs as a result of the purchase or redemption of the U.S. Borrower’s previously outstanding 7 5/8% Senior Secured Notes due 2016), and (c) the portion of rent expense under Capital Leases that is treated as interest in accordance with

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GAAP, in each case, of or by the U.S. Borrower and its Subsidiaries on a consolidated basis for the most recently completed Measurement Period.

Consolidated Net Income: at any date of determination, the net income (or loss) of the U.S. Borrower and its Subsidiaries on a consolidated basis for the most recently completed Measurement Period; provided that the calculation of Consolidated Net Income shall exclude (a) extraordinary gains and extraordinary losses for such Measurement Period, (b) solely for purposes of calculating the Consolidated Fixed Charge Coverage Ratio pursuant to Section 10.2.6(b), the net income of any Subsidiary during such Measurement Period to the extent that the declaration or payment of dividends or similar distributions by such Subsidiary of such income is not permitted by operation of the terms of its Organic Documents or any agreement, instrument or Applicable Law during such Measurement Period, except that the U.S. Borrower’s equity in any net loss of any such Subsidiary for such Measurement Period shall be included in determining Consolidated Net Income, (c) any income (or loss) for such Measurement Period of any Person if such Person is not a Subsidiary, except that the U.S. Borrower’s equity in the net income of any such Person for such Measurement Period shall be included in Consolidated Net Income up to the aggregate amount of cash actually distributed by such Person during such Measurement Period to the U.S. Borrower or a Subsidiary as a dividend or other distribution (and in the case of a dividend or other distribution to a Subsidiary, such Subsidiary is not precluded from further distributing such amount to the U.S. Borrower as described in clause (b) of this proviso), (d) any accretion expense attributable to Environmental Liabilities for such Measurement Period (provided that such (1) such expense is non-cash and (2) determined on a consolidated basis in accordance with GAAP), and (e) non-recurring employee severance costs in an amount not to exceed $2,000,000 in any twelve month period.

Contingent Obligation: any obligation of a Person arising from a guarantee, indemnity or other assurance of payment or performance of any Debt, lease, dividend or other obligation (“primary obligations”) of another obligor (“primary obligor”) in any manner, whether directly or indirectly, including any obligation of such Person under any (a) guarantee, endorsement, co-making or sale with recourse of an obligation of a primary obligor; (b) obligation to make take-or-pay or similar payments regardless of nonperformance by any other party to an agreement; and (c) arrangement (i) to purchase any primary obligation or security therefor, (ii) to supply funds for the purchase or payment of any primary obligation, (iii) to maintain or assure working capital, equity capital, net worth or solvency of the primary obligor, (iv) to purchase Property or services for the purpose of assuring the ability of the primary obligor to perform a primary obligation, or (v) otherwise to assure or hold harmless the holder of any primary obligation against loss in respect thereof.  The amount of any Contingent Obligation shall be deemed to be the stated or determinable amount of the primary obligation (or, if less, the maximum amount for which such Person may be liable under the instrument evidencing the Contingent Obligation) or, if not stated or determinable, the maximum reasonably anticipated liability with respect thereto.

Contra Account: an account on the balance sheet of a Person that offsets the balance of a related and corresponding account.

Contractual Obligation: with respect to any Person, any provision of any security issued by such Person or of any agreement, instrument or other undertaking to which such Person is a party or by which it or any of its property is bound.

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Control: the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of a Person, whether through the ability to exercise voting power, by contract or otherwise.  “Controlling” and “Controlled” have correlative meanings.

Copyright Security Agreement: each agreement pursuant to which a U.S. Facility Loan Party grants to the Agent a Lien on such U.S. Facility Loan Party’s interests in copyrights and copyright applications and other related property and rights as security for any of the U.S. Facility Obligations.

Covenant Trigger Period: the period commencing on any day that either (a) a Default or Event of Default occurs or (b) Liquidity is less than the greater of (i) $40,000,000 and (ii) ten percent (10%) of the Commitments.

Credit Party: the Agent, a Lender or an Issuing Bank; and “Credit Parties” means the Agent, the Lenders and the Issuing Banks.

Creditor Representative: under any Applicable Law, a receiver, interim receiver, receiver and manager, trustee (including any trustee in bankruptcy), custodian, conservator, administrator, examiner, sheriff, monitor, assignee, liquidator, provisional liquidator, sequestrator or similar officer or fiduciary.

CWA: the Clean Water Act (33 U.S.C. §§ 1251 et seq.), as amended.

DACA Deposit Account: a Deposit Account subject to a Deposit Account Control Agreement.

Debt: with respect to any Person at a particular time, without duplication, all of the following, whether or not included as indebtedness or liabilities in accordance with GAAP:

(h)                                 all obligations of such Person for Borrowed Money and all obligations of such Person evidenced by bonds, debentures, notes, loan agreements or other similar instruments;

(i)                                     the maximum amount of all direct or contingent obligations of such Person arising under letters of credit (including standby and commercial), bankers’ acceptances, bank guaranties, surety bonds and similar instruments;

(j)                                    the Hedging Termination Value that such Person would be required to pay under any Hedging Agreement to which such Person is a party if such Hedging Agreement were terminated at such time;

(k)                                 all obligations of such Person to pay the deferred purchase price of property or services (other than trade accounts payable in the ordinary course of business and not past due for more than one hundred fifty (150) days after the date on which such trade account was created);

(l)                                     indebtedness (excluding prepaid interest thereon) secured by a Lien on property owned or being purchased by such Person (including indebtedness arising under conditional sales or other title retention agreements), whether or not such indebtedness shall have been assumed by such Person or is limited in recourse;

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(m)                             all Attributable Debt in respect of Capital Leases of such Person;

(n)                                 all obligations of such Person to purchase, redeem, retire, defease or otherwise make any payment in respect of any Equity Interest in such Person or any other Person or any warrant, right or option to acquire such Equity Interest, valued, in the case of a redeemable preferred interest, at the greater of its voluntary or involuntary liquidation preference plus accrued and unpaid dividends; and

(o)                                 without duplication, all Contingent Obligations of such Person in respect of other Debt.

For all purposes hereof, the Debt of any Person shall include the Debt of any partnership or joint venture (other than a joint venture that is itself a corporation or limited liability company) in which such Person is a general partner or a joint venturer, unless such Debt is expressly made non-recourse to such Person.  The amount of any net obligation under any Hedging Agreement on any date shall be deemed to be the Hedging Termination Value thereof as of such date.

Default: an event or condition that, with the lapse of time or giving of notice, would constitute an Event of Default.

Default Rate: for any Obligation (including, to the extent permitted by law, interest not paid when due), two percent (2%) plus the interest rate otherwise applicable thereto or, if such Obligation does not bear interest, a rate equal to the U.S. Base Rate plus two percent (2%).

Defaulting Lender: any Lender that (a) fails to make any payment or provide funds to the Agent or any Borrower as required hereunder or fails otherwise to perform its obligations under any Loan Document, and such failure is not cured within three (3) Business Days, (b) notified the Loan Party Agent, the Agent, any Issuing Bank or any Lender in writing that it does not intend to comply with any of its funding obligations under this Agreement or has made a public statement to the effect that it does not intend to comply with its funding obligations under this Agreement, (c) failed, within three (3) Business Days after request by the Agent, to confirm in writing that it will comply with the terms of this Agreement relating to its obligations to fund prospective Loans and participations in then outstanding Letters of Credit and Swingline Loans (provided that such Lender shall cease to be a Defaulting Lender pursuant to this clause (c) upon receipt of such written confirmation by the Agent), or (d) is the subject of any Insolvency Proceeding or has a parent company that is the subject of any Insolvency Proceeding; provided, that a Lender shall not constitute a Defaulting Lender based solely upon any proceedings or events occurring prior to the Closing Date that resulted in any Governmental Authority owning an equity interest in the parent of such Lender.

Deposit Account: as defined in the UCC (and/or with respect to any Deposit Account located in Canada, any bank account with a deposit function).

Deposit Account Control Agreements: the deposit account control agreements in form and substance reasonably satisfactory to the Agent executed by each lockbox servicer and financial institution maintaining a lockbox and/or Deposit Account (other than an Excluded Account) for a Loan Party, in favor of the Agent and meeting the requirements set forth in Section 8.2.4.

Designated Obligations:  as defined in Section 14.11(a)(v).

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Disposition or Dispose: any direct or indirect conveyance, sale, lease, sublease, assignment, transfer or other disposition (including any sale and leaseback transaction) of any Property excluding sales of inventory and dispositions of Cash Equivalents, in each case, in the ordinary course of business, by the U.S. Borrower or any of its Subsidiaries.

Disqualified Equity Interests: Equity Interests that (a) mature or are mandatorily redeemable or subject to mandatory repurchase or redemption or repurchase at the option of the holders thereof (including those Equity Interests that may be required to be redeemed upon the failure to maintain or achieve any financial performance standards), in each case in whole or in part and whether upon the occurrence of any event, pursuant to a sinking fund obligation on a fixed date or otherwise, prior to the date that is one hundred eighty (180) days after the scheduled Facility Termination Date (other than upon a “change in control,” provided that any such payment required pursuant to this parenthetical is contractually subordinated in right of payment to the Obligations on terms reasonably satisfactory to the Agent and such requirement is applicable only in circumstances that are market on the date of issuance of such Equity Interests); (b) are convertible or exchangeable, automatically or at the option of any holder thereof, into any Debt, other Disqualified Equity Interests or other assets, in each case, other than Qualified Equity Interests prior to the date that is one hundred eighty (180) days after the scheduled Facility Termination Date (other than upon a “change in control”, provided that any conversion or exchange required pursuant to this parenthetical is contractually subordinated in right of payment to the Obligations on terms reasonably satisfactory to the Agent and such requirement is applicable only in circumstances that are market on the date of issuance of such Equity Interests); (c) require payment of Restricted Payments or (d) entitle the holder thereof to disproportionate voting rights.

Document:  as defined in the UCC (and/or with respect to any Document of a Canadian Domiciled Loan Party, a “document of title” as defined in the PPSA).

Dollar Equivalent:  on any date, with respect to any amount denominated in Dollars, such amount in Dollars, and with respect to any stated amount in a currency other than Dollars, the amount of Dollars that the Agent determines (which determination shall be conclusive and binding absent manifest error) would be necessary to be sold on such date at the applicable Exchange Rate to obtain the stated amount of the other currency.

Dollars or $: lawful money of the United States.

Dominion Account: with respect to the Canadian Domiciled Loan Parties, the Canadian Dominion Account, and with respect to the U.S. Facility Loan Parties, the U.S. Dominion Account.

Eligible Accounts:  Canadian Eligible Accounts or U.S. Eligible Accounts, as appropriate.

Eligible Assignee: a Person that is (i) a Lender or an Affiliate of a Lender, (ii) if such Person is to hold U.S. Facility Obligations, an Approved Fund; (iii) if such Person is to hold Canadian Facility Obligations, a Canadian Qualified Lender; (iv) any other financial institution approved by the Agent, Issuing Banks and Loan Party Agent (which approval by the Loan Party Agent shall not be unreasonably withheld or delayed, and shall be deemed given if no objection is made within two (2) Business Days after notice of the proposed assignment), which extends

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revolving credit facilities in its ordinary course of business; and (v) during any Event of Default, any Person acceptable to the Agent and the Issuing Banks in their reasonable discretion.

Embargoed Person:  as defined in Section 10.2.17.

Enforcement Action: any action to enforce any Obligations or Loan Documents or to realize upon any Collateral (whether by judicial action, self-help, notification of Account Debtors, exercise of setoff or recoupment, exercise of any right to act in a Loan Party’s Insolvency Proceeding or to credit bid its Obligations, or otherwise).

Environment: ambient air, indoor air, surface water and groundwater (including potable water, navigable water and wetlands), the land surface or subsurface strata, natural resources or as otherwise defined in any Environmental Law.

Environmental Claim: any written claim, notice, demand, order, action, suit, proceeding or other written communication alleging liability for or obligation with respect to any investigation, remediation, removal, cleanup, response, corrective action, damages to natural resources, personal injury, property damage, fines, penalties or other costs resulting from, related to or arising out of (i) the presence, Environmental Release or threatened Environmental Release in or into the Environment of Hazardous Material at any location or (ii) any violation or alleged violation of any Environmental Law, and shall include any written claim seeking damages, contribution, indemnification, cost recovery, compensation or injunctive relief resulting from, related to or arising out of the presence, Environmental Release or threatened Environmental Release of Hazardous Material or alleged injury or threat of injury to health, safety or the Environment.

Environmental Expenditures: with respect to any Person for any period, the sum of the aggregate of all expenditures by such Person and its Subsidiaries for spending incurred with respect to remedial liabilities, including but not limited to, superfund, remediation, facility closure remediation, and discontinued operation liabilities.

Environmental Laws: all Applicable Laws (including all programs, permits and guidance promulgated by regulatory agencies), relating to protection of human health, the protection or pollution of the Environment, the Environmental Release or threatened Environmental Release of Hazardous Material, or occupational safety or health (to the extent related to exposure to Hazardous Material), including CERCLA, RCRA, CWA and EPEA, and any and all Governmental Approvals required under any Environmental Law.

Environmental Permit: any permit, approval, identification number, license or other authorization required under any Environmental Law.

Environmental Release: any spilling, leaking, seepage, pumping, pouring, emitting, emptying, discharging, injecting, escaping, leaching, dumping, disposing, depositing, dispersing, emanating or migrating of any Hazardous Material in, into, onto or through the Environment in violation of any applicable Environmental Laws.

EPEA:  the Alberta Environmental Protection and Enhancement Act, R.S.A. 2000, c.E-12.

Equity Interest: with respect to any Person, shares of capital stock of (or other ownership interests in) such Person, warrants, options or other rights for the purchase or other acquisition

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from such Person of shares of capital stock of (or other ownership interests in) such Person, securities convertible into or exchangeable for shares of capital stock of (or other ownership interests in) such Person or warrants, rights or options for the purchase or other acquisition from such Person of such shares (or such other interests), and other ownership interests in such Person (including, without limitation, partnership, member or trust interests therein), whether voting or nonvoting, and whether or not such shares, warrants, options, rights or other interests are authorized on any date of determination.

ERISA: the Employee Retirement Income Security Act of 1974, as amended from time to time.

ERISA Affiliate: any trade or business (whether or not incorporated) under common control with any Loan Party within the meaning of Section 414(b) or (c) of the Code (and Sections 414(m) and (o) of the Code which, together with such Loan Party, is required for purposes of provisions relating to Section 412, 430 or 4980B of the Code or Title IV of ERISA to be treated as a single employer.

ERISA Event: (a) a Reportable Event with respect to a Pension Plan; (b) a withdrawal by any Loan Party or ERISA Affiliate from a Pension Plan subject to Section 4063 of ERISA during a plan year in which it was a substantial employer (as defined in Section 4001(a)(2) of ERISA) or a cessation of operations that is treated as such a withdrawal under Section 4062(e) of ERISA; (c) a complete or partial withdrawal by any Loan Party or ERISA Affiliate from a Multiemployer Plan or notification that a Multiemployer Plan is in reorganization; (d) the filing of a notice of intent to terminate, the treatment of a Plan amendment as a termination under Section 4041 or 4041A of ERISA, or the commencement of proceedings by the PBGC to terminate a Pension Plan or Multiemployer Plan; (e) failure of any Loan Party or ERISA Affiliate to meet any contribution or funding obligations with respect to any Pension Plan or Multiemployer Plan, or a request by such Loan Party or ERISA Affiliate of a minimum funding waiver; (f) an event or condition which constitutes grounds under Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Pension Plan or Multiemployer Plan; (g) the imposition of any liability (including, without limitation, any Lien) under Title IV of ERISA, other than for PBGC premiums due but not delinquent under Section 4007 of ERISA, upon any Loan Party or ERISA Affiliate; (h) the receipt by a Loan Party or ERISA Affiliate of an inquiry from the PBGC under the Early Warning Program or Risk Mitigation Program, or any substantially equivalent inquiry by the PBGC, which indicates the existence of any other event or condition that could reasonably be expected to constitute grounds under Section 4042 of ERISA for the termination of, or the appointment of a trustee to administer, any Pension Plan or result in additional funding obligations on a Loan Party or ERISA Affiliate; (i) the occurrence of a nonexempt prohibited transaction (within the meaning of Section 4975 of the Code or Section 406 of ERISA); or (j) a determination that any Pension Plan is considered to be an at-risk plan or that any Multiemployer Plan is in endangered or critical status within the meaning of Sections 430, 431 and 432 of the Code, or Sections 303, 304 and 305 of ERISA.

Event of Default: as defined in Section 11.1.

Excess Amount:  as defined in Section 5.12.

Excess Availability: at any time, the sum of (a) the U.S. Availability at such time and (b) the Canadian Availability at such time.

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Exchange Rate:  on any date, (a) with respect to Canadian Dollars in relation to Dollars, the spot rate as quoted by Bank of America as its noon spot rate at which Dollars are offered on such date for Canadian Dollars, and (b) with respect to Dollars in relation to Canadian Dollars, the spot rate as quoted by Bank of America as its noon spot rate at which Canadian Dollars are offered on such date for Dollars.

Excluded Accounts:  (a) Deposit Accounts of any Loan Party exclusively used for payroll, payroll taxes or employee benefits in the ordinary course of business, (b) other Deposit Accounts of the Loan Parties containing not more than the Dollar Equivalent of $1,000,000 in the aggregate at any time, and (c) any Deposit Account or securities account which only holds the identifiable proceeds of any sale of Non-Accounts Collateral in accordance with an Intercreditor Agreement.

Excluded Tax: with respect to the Agent, any Lender, any Issuing Bank or any other recipient of a payment to be made in satisfaction of or on account of any Obligation, (a) taxes imposed on or measured by its overall net income (however denominated), franchise taxes imposed on it (in lieu of net income taxes), and branch profits taxes imposed on it, by the jurisdiction (or any political subdivision thereof) under the laws of which such recipient is organized or in which its principal office is located or, in the case of any Lender, in which its applicable Lending Office is located; (b) in the case of a Foreign Lender, any withholding tax attributable to such Foreign Lender’s failure or inability (other than as a result of a Change in Law) to comply with Section 5.10, except to the extent that such Foreign Lender (or its assignor, if any) was entitled, at the time of designation of a new Lending Office (or assignment), to receive additional amounts from any Borrower with respect to such withholding tax; (c) in the case of a Lender required to provide an IRS Form W-9 pursuant to Section 5.10.2, any U.S. backup withholding tax attributable to such Lender’s failure or inability to provide an IRS Form W-9 certifying that such Lender is not subject to such withholding; and (d) any Taxes imposed, deducted or withheld under FATCA.

Executive Orders:  as defined in Section 10.2.17.

Existing Credit Agreement: as defined in the Recitals hereto.

Existing Letters of Credit: those letters of credit set forth on Schedule 1.1(b).

Extraordinary Expenses: all costs, expenses or advances that the Agent may incur during a Default or Event of Default, or during the pendency of an Insolvency Proceeding of a Loan Party or Subsidiary thereof, including those relating to (a) any audit, inspection, repossession, storage, repair, appraisal, insurance, manufacture, preparation or advertising for sale, sale, collection, or other preservation of or realization upon any Collateral; (b) any action, arbitration or other proceeding (whether instituted by or against the Agent, any Lender, any Loan Party or Subsidiary thereof, any representative of creditors of a Loan Party or Subsidiary thereof or any other Person) in any way relating to any Collateral (including the validity, perfection, priority or avoidability of the Agent’s Liens with respect to any Collateral), Loan Documents, Letters of Credit or Obligations, including any lender liability or other Claims; (c) the exercise, protection or enforcement of any rights or remedies of the Agent in, or the monitoring of, any Insolvency Proceeding; (d) settlement or satisfaction of any taxes, charges or Liens with respect to any Collateral; (e) any Enforcement Action; (f) negotiation and documentation of any modification, waiver, workout, restructuring or forbearance with respect to any Loan Documents or

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Obligations; and (g) Protective Advances.  Such costs, expenses and advances include transfer fees, Other Taxes, storage fees, insurance costs, permit fees, utility reservation and standby fees, legal fees, appraisal fees, brokers’ fees and commissions, auctioneers’ fees and commissions, accountants’ fees, environmental study fees, wages and salaries paid to employees of any Loan Party or independent contractors in liquidating any Collateral, and travel expenses.

Facility Commitment:  with respect to the Commitment of a U.S. Lender, its U.S. Revolver Commitment and, with respect to a Canadian Lender, its Canadian Revolver Commitment; and the term “Facility Commitments” means, collectively, the Facility Commitments of the U.S. Lenders and the Facility Commitments of the Canadian Lenders.  To the extent any Lender has both a U.S. Revolver Commitment and a Canadian Revolver Commitment, such Commitments shall be considered as separate Commitments for purposes of this definition.

Facility Termination Date: January 17, 2018.

FATCA:  Sections 1471 through 1474 of the Code and any regulations thereunder or official governmental interpretations thereof.

Federal Funds Rate: (a) the weighted average of interest rates on overnight federal funds transactions with members of the Federal Reserve System arranged by federal funds brokers on the applicable Business Day (or on the preceding Business Day, if the applicable day is not a Business Day), as published by the Federal Reserve Bank of New York on the next Business Day; or (b) if no such rate is published on the next Business Day, the average rate (rounded up, if necessary, to the nearest 1/8 of 1%) charged to Bank of America on the applicable day on such transactions, as determined by the Agent.

Federal Government Account: an Account with respect to which the Account Debtor is the United States of America or a department, agency or instrumentality thereof.

Fee Letter: the amended and restated fee letter agreement between the Agent, the Lead Arranger and the Borrowers dated as of the Closing Date.

Financial Administration Act: the Financial Administration Act (Canada) and all regulations and schedules thereunder.

Fiscal Quarter: each period of three calendar months, commencing on the first day of a Fiscal Year.

Fiscal Year: the fiscal year of each of the Loan Parties for accounting and tax purposes, in each case, ending on December 31 of each year.

Floating Rate Loan:  a U.S. Base Rate Loan, a Canadian Prime Rate Loan or a Canadian Base Rate Loan.

FLSA: the Fair Labor Standards Act of 1938, as amended.

Foreign Lender:  (a) in the case of the Canadian Borrower, any Lender that is organized under the laws of a jurisdiction other than Canada or a province or territory thereof, and (b) in

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the case of the U.S. Borrower, any Lender that is organized under the laws of a jurisdiction other than the laws of the United States or any state or district thereof.

Foreign Plan:  any employee benefit plan or arrangement (a) maintained or contributed to by any Loan Party or Affiliate that is not subject to the laws of the United States or Canada; or (b) mandated by a government other than the United States or Canada for employees of any Loan Party or Affiliate.

Foreign Subsidiary: a Subsidiary of a U.S. Domiciled Loan Party that is a “controlled foreign corporation” under Section 957 of the Code or any Subsidiary of such a Foreign Subsidiary.

FSCO:  the Financial Services Commission of Ontario or like body in any other Province of Canada with whom a Canadian Pension Plan is registered in accordance with Applicable Law and any other Governmental Authority succeeding to the functions thereof.

Full Payment: with respect to any Obligations (other than unasserted contingent indemnity claims), (a) the full cash payment thereof in the applicable currency required hereunder, including any interest, fees and other charges accruing during an Insolvency Proceeding (whether or not allowed in the proceeding) and (b) if such Obligations are LC Obligations, Bank Product Debt, Secured Hedging Obligations or inchoate or contingent in nature, Cash Collateralization thereof (or delivery of a standby letter of credit acceptable to Agent in its discretion, in the amount of required Cash Collateral).  No Loans shall be deemed to have been paid in full until all Commitments related to such Loans have expired or been terminated.

GAAP: generally accepted accounting principles in effect in the United States from time to time applied consistently.

General Intangibles:  as defined in the UCC (and/or with respect to any General Intangible of a Canadian Facility Loan Party, an “intangible” as defined in the PPSA).

Governmental Approvals: all authorizations, consents, approvals, licenses and exemptions of, registrations and filings with, and required reports to, all Governmental Authorities.

Governmental Authority: any federal, state, provincial, municipal, foreign or other governmental department, agency, commission, board, bureau, court, tribunal, instrumentality, political subdivision, or other entity or officer exercising executive, legislative, judicial, regulatory or administrative functions for or pertaining to any government or court, in each case whether it is or is not associated with the United States, a state, district or territory thereof, Canada, a province or territory thereof or any other foreign entity or government.

Guarantee: each guarantee agreement (including the U.S. Facility Guarantee and the Canadian Facility Guarantee) executed by a Guarantor in favor of the Agent guaranteeing all or any portion of any Canadian Facility Obligation or U.S. Facility Obligation.

Guarantors:  the Canadian Facility Guarantors, the U.S. Facility Guarantors, and each other Person who guarantees payment or performance of any Obligations.

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Hart-Scott Rodino Act: the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended.

Hazardous Materials:  hazardous substances; hazardous wastes; polychlorinated biphenyls (“PCBs”) or any substance or compound containing PCBs; exposed friable asbestos; radon or any other radioactive materials including any source, special nuclear or by-product material; petroleum, crude oil or any fraction thereof; and any other pollutant or contaminant or chemicals, wastes, materials, compounds, constituents or substances, subject to regulation or which can give rise to liability under any Environmental Laws.

Hedging Agreement: any “swap agreement” as defined in Section 101(53B)(A) of the Bankruptcy Code.

Hedging Obligations: with respect to any Person, any and all obligations of such Person, whether absolute or contingent and however and whenever created, arising, evidenced or acquired (including all renewals, extensions and modifications thereof and substitutions therefor), under (a) any and all Hedging Agreements, and (b) any and all cancellations, buy backs, reversals, terminations or assignments of any Hedging Agreement transaction.

Hedging Termination Value: with respect to any one or more Hedging Agreements, after taking into account the effect of any legally enforceable netting agreement relating to such Hedging Agreements, (a) for any date on or after the date such Hedging Agreements have been closed out and termination value(s) determined in accordance therewith, such termination value(s), and (b) for any date prior to the date referenced in clause (a), the amount(s) determined as the mark-to-market value(s) for such Hedging Agreements, as determined based upon one or more mid-market or other readily available quotations provided by any recognized dealer in such Hedging Agreements (which may include a Lender or any Affiliate of a Lender).

Incremental Commitments: U.S. Incremental Commitments or Canadian Incremental Commitments, as the context requires.

Incremental Loan Amendment:  as defined in Section 2.1.8(c).

Incremental Loans: U.S. Incremental Loans or Canadian Incremental Loans, as the context requires.

Indemnified Taxes: Taxes other than Excluded Taxes.

Indemnitees: Agent Indemnitees, Lender Indemnitees, Issuing Bank Indemnitees and Bank of America Indemnitees.

Insolvency Proceeding:  any case or proceeding or proposal commenced by or against a Person under any state, provincial, federal or foreign law for, or any agreement of such Person to, (a) the entry of an order for relief under the U.S. Bankruptcy Code, or any other insolvency, debtor relief, bankruptcy, receivership, debt adjustment law or other similar law (whether state, provincial, federal or foreign), including the BIA and the CCAA; (b) the appointment of a Creditor Representative or other custodian for such Person or any part of its Property; or (c) an assignment or trust mortgage for the benefit of creditors.

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Intellectual Property: all intellectual and similar Property of a Person, including inventions, designs, patents, copyrights, trademarks, service marks, trade names, trade secrets, confidential or proprietary information, customer lists, know-how, software and databases; all embodiments or fixations thereof and all related documentation, applications, registrations and franchises; all licenses or other rights to use any of the foregoing; and all books and records relating to the foregoing.

Intercreditor Agreement: (a) any intercreditor agreement hereafter entered into between the Agent and the trustee, collateral agent, administrative agent or other agent for the benefit of the noteholders or lenders under any Other Secured Debt Agreement, and (b) any other intercreditor agreement hereafter entered into between the Agent and the trustee, collateral agent, administrative agent or other agent for the benefit of the noteholders or lenders of any other Debt of the U.S. Borrower or any Subsidiary thereof permitted hereunder, in all cases such agreement to be in form, scope and substance satisfactory to the Agent and the Required Lenders (it being understood that in each case an Intercreditor Agreement substantially in the form of the Intercreditor Agreement dated as of August 14, 2009, among the Agent, the U.S. Borrower, its U.S. Subsidiaries party thereto, and U.S. Bank National Association, in its capacity as trustee and collateral agent under the Indenture dated as of August 14, 2009 among the U.S. Borrower, its U.S. Subsidiaries party thereto, and U.S. Bank National Association, shall be satisfactory to the Agent and the Required Lenders for purposes of this definition).

Interest Period: as defined in Section 3.1.4.

Interest Period Loan: a LIBOR Loan or a Canadian BA Rate Loan.

Investment: any acquisition of all or substantially all assets of a Person; any acquisition of record or beneficial ownership of any Debt or Equity Interests of a Person (other than any such acquisition which is part of, or made in connection with, a Restricted Payment permitted hereunder); any loan, advance or capital contribution to or other investment in a Person; any guarantee (or other similar arrangement having the effect of a guarantee) of any payment of amounts owing by any Person; or any purchase or ownership of a Hedging Agreement.

IP Rights:  as defined in Section 9.1.17.

IRS: the United States Internal Revenue Service.

Issuing Bank Indemnitees: the Issuing Banks, their Affiliates and their officers, directors, employees, attorneys and agents.

Issuing Banks: U.S. Issuing Bank and Canadian Issuing Bank.

LC Application: an application by the Loan Party Agent on behalf of a Borrower to an Issuing Bank for issuance of a Letter of Credit, in form and substance satisfactory to such Issuing Bank.

LC Conditions: the following conditions necessary for the issuance of a Letter of Credit: (a) each of the conditions set forth in Section 6.2 (or with respect to Letters of Credit issued on the Closing Date, in Section 6.1); (b) after giving effect to the issuance of a Letter of Credit for the account of the U.S. Borrower, total U.S. LC Obligations (excluding amounts specified in clause (c) of such definition) do not exceed the U.S. Letter of Credit Sublimit and no U.S.

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Overadvance exists or would result therefrom; (c) after giving effect to the issuance of a Letter of Credit for the account of the Canadian Borrower, total Canadian LC Obligations (excluding amounts specified in clause (c) of such definition) do not exceed the Canadian Letter of Credit Sublimit and no Canadian Overadvance exists or would result therefrom; (d) the expiration date of such Letter of Credit is (i) no more than three hundred sixty five (365) days from issuance, in the case of standby Letters of Credit; provided that such Letters of Credit may contain automatic extension provisions in accordance with Section 2.2.1(e) or Section 2.3.1(e), as applicable, (ii) no more than one hundred twenty (120) days from issuance, in the case of documentary Letters of Credit, and (iii) at least fifteen (15) Business Days prior to the Facility Termination Date; (e) with respect the issuance of Letters of Credit for the account of the U.S. Borrower, the Letter of Credit and payments thereunder are denominated in Dollars; (f) with respect to the issuance of Letters of Credit for the account of the Canadian Borrower, the Letter of Credit and payments thereunder are denominated in Dollars or Canadian Dollars; and (g) the form of the proposed Letter of Credit is reasonably satisfactory to the Agent and the applicable Issuing Bank in their discretion.

LC Documents: all documents, instruments and agreements (including LC Requests and LC Applications) delivered by the Loan Party Agent on behalf of a Borrower or by any other Person to an Issuing Bank or the Agent in connection with issuance, amendment or renewal of, or payment under, any Letter of Credit.

LC Obligations: U.S. LC Obligations and Canadian LC Obligations.

LC Request: a request for issuance of a Letter of Credit, to be provided by the Loan Party Agent on behalf of a Borrower to an Issuing Bank, in form satisfactory to the Agent and such Issuing Bank.

Lead Arranger: Merrill Lynch, Pierce, Fenner & Smith Incorporated.

Lender Indemnitees:  the Lenders, their Affiliates and their officers, directors, employees, attorneys and agents.

Lenders: as defined in the preamble to this Agreement and shall include the Agent in its capacity as a provider of Swingline Loans and the U.S. Lenders and the Canadian Lenders and their respective permitted successors and assigns and, where applicable, the Issuing Banks, and any other Person who hereafter becomes a “Lender” pursuant to an Assignment and Acceptance.

Lending Office: the office designated as such by the applicable Lender at the time it becomes party to this Agreement or thereafter by notice to the Agent and the Loan Party Agent.

Letter of Credit: any U.S. Letter of Credit or Canadian Letter of Credit; and each Existing Letter of Credit shall be deemed to be a “Letter of Credit” for all purposes of this Agreement.

LIBOR: for any Interest Period for a LIBOR Loan, the per annum rate of interest (rounded up, if necessary, to the nearest 1/8th of 1%), determined by the Agent at approximately 11:00 a.m. (London time) two (2) Business Days prior to commencement of such Interest Period, for a term comparable to such Interest Period, equal to (a) the British Bankers Association LIBOR Rate (“BBA LIBOR”), as published by Reuters (or other commercially available source designated by Agent) or (b) if BBA LIBOR is unavailable for any reason, the interest rate at which Dollar deposits in the approximate amount of the LIBOR Loan would be offered by

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Agent’s London branch to major banks in the London interbank Eurodollar market.  If the Board of Governors imposes a Reserve Percentage with respect to LIBOR deposits, then LIBOR shall be the foregoing rate, divided by one (1) minus the Reserve Percentage.

LIBOR Loan: each set of LIBOR Revolver Loans having a common length and commencement of Interest Period.

LIBOR Revolver Loan:  a Revolver Loan that bears interest based on LIBOR; provided, however, that a U.S. Base Rate Loan bearing interest as set forth in clause (c) of the definition of U.S. Base Rate shall not constitute a LIBOR Revolver Loan.

License Agreement: has the meaning specified in Section 9.1.17.

Licensor: any Person from whom a Loan Party or Subsidiary obtains the right to use any Intellectual Property.

Lien: any Person’s interest in Property securing an obligation owed to, or a claim by, such Person, including any lien, security interest, pledge, hypothecation, trust, reservation, encroachment, easement, right-of-way, covenant, condition, restriction, leases, or other title exception or encumbrance.

Lien Waiver: an agreement, in form and substance reasonably satisfactory to the Agent, by which (a) for any material Collateral located on premises leased by a Loan Party, the lessor waives or subordinates any Lien it may have on the Collateral, and agrees to permit the Agent to enter upon the premises and remove the Collateral or to use the premises to store or dispose of the Collateral during certain time periods to be agreed upon by the Agent and such lessor; (b) for any Collateral held by a warehouseman, processor, shipper, customs broker or freight forwarder, such Person waives or subordinates any Lien it may have on the Collateral, agrees to hold any Documents in its possession relating to the Collateral as agent for the Agent, and agrees to deliver the Collateral to the Agent upon request; (c) for any Collateral held by a repairman, mechanic or bailee, such Person acknowledges the Agent’s Lien, waives or subordinates any Lien it may have on the Collateral, and agrees to deliver the Collateral to the Agent upon request; and (d) for any Collateral subject to a Licensor’s Intellectual Property rights, the Licensor grants to the Agent the right, vis-à-vis such Licensor, to enforce the Agent’s Liens with respect to the Collateral, including the right to dispose of it with the benefit of the Intellectual Property, whether or not a default exists under any applicable License Agreement.

Line Cap: on any date of determination the sum of the U.S. Borrowing Base and the Canadian Borrowing Base.

Liquidity: as of any date of determination, the sum of (a) U.S. Availability as of such date plus (b) the lesser of (i) Canadian Availability as of such date and (ii) sixty percent (60%) of the Canadian Revolver Commitments as of such date.

Loan: a Revolver Loan.

Loan Documents: this Agreement, the Other Agreements and the Security Documents.

Loan Parties: the Canadian Facility Loan Parties and the U.S. Facility Loan Parties, collectively, and “Loan Party” means any of the Loan Parties, individually.

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Loan Party Agent: as defined in Section 4.4.

Loan Party Group:  a group consisting of (a) the Canadian Facility Loan Parties or (b) the U.S. Facility Loan Parties.

Loan Party Group Obligations: with respect to the Canadian Borrower and the other Canadian Facility Loan Parties, the Canadian Facility Obligations, and with respect to the U.S. Borrower and the other U.S. Facility Loan Parties, the U.S. Facility Obligations.

Material Adverse Effect: (a) a material adverse change in, or a material adverse effect upon, the operations, business, properties, liabilities (actual or contingent), condition (financial or otherwise) or prospects of either Borrower or the U.S. Borrower and its Subsidiaries taken as a whole; (b) a material impairment of the rights and remedies of the Agent or any Lender under any Loan Document, or of the ability of any Loan Party to perform its obligations under any Loan Document to which it is a party; or (c) a material adverse effect upon the legality, validity, binding effect or enforceability against any Loan Party of any Loan Document to which it is a party.

Material Contract: (a) any contract or other agreement (other than the Loan Documents), written or oral, of any Loan Party involving monetary liability of or to any Person in an amount in excess of $25,000,000 in any fiscal year and (b) any other contract or other agreement (other than the Loan Documents), whether written or oral, to which any Loan Party is a party as to which the breach, non-performance, cancellation or failure to renew by any party thereto would have a Material Adverse Effect on the business, assets, condition (financial or otherwise) or results of operations or prospects of any Loan Party or the validity or enforceability of this Agreement, any of the other Loan Documents, or any of the rights and remedies of the Agent or Secured Parties hereunder or thereunder.

Material Debt: any Debt of the U.S. Borrower or any Subsidiary thereof under (a) any instrument (other than Debt incurred under this Agreement) or (b) any Hedging Agreement, in each case, in an aggregate outstanding principal amount exceeding $30,000,000.  For purposes of determining Material Debt, the principal of any Hedging Agreement of any Person at any time shall be the Hedging Termination Value that such Person would be required to pay if such Hedging Agreement were terminated at such time.

Maximum Canadian Facility Amount: on any date of determination, the lesser of (a) the Canadian Revolver Commitments on such date and (b) $100,000,000 (or such greater or lesser amount after giving effect to any reduction in the Canadian Revolver Commitments made pursuant to and in accordance with Section 2.1.4, any Canadian Revolver Commitment Adjustment made pursuant to and in accordance with Section 2.1.7, and/or any Canadian Incremental Commitments made pursuant to and in accordance with Section 2.1.8(b)); it being acknowledged and agreed that at no time shall the sum of the Maximum Canadian Facility Amount plus the Maximum U.S. Facility Amount exceed the Maximum Facility Amount in effect at such time.

Maximum Facility Amount: $400,000,000, or such greater or lesser amount as shall then be in effect after giving effect to any reduction in the Commitments pursuant to and in accordance with Section 2.1.4, and/or any Incremental Commitments made pursuant to and in accordance with Section 2.1.8.

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Maximum Incremental Amount: $100,000,000.

Maximum U.S. Facility Amount: on any date of determination, the lesser of (a) the U.S. Revolver Commitments on such date and (b) $300,000,000 (or such greater or lesser amount after giving effect to any reduction in the U.S. Revolver Commitments pursuant to and in accordance with Section 2.1.4, any Canadian Revolver Commitment Adjustment made pursuant to and in accordance with Section 2.1.7, and/or any U.S. Incremental Commitments made pursuant to and in accordance with Section 2.1.8(a)); it being acknowledged and agreed that at no time shall the sum of the Maximum U.S. Facility Amount plus the Maximum Canadian Facility Amount exceed the Maximum Facility Amount in effect at such time.

Measurement Period: on any date of determination, the most recently completed four Fiscal Quarters of the U.S. Borrower.

Merger Sub:  CH Merger Sub, Inc., which prior to the completion of the Safety-Kleen Merger was a wholly-owned Subsidiary of the U.S. Borrower.

Moody’s: Moody’s Investors Service, Inc., and its successors.

Mortgage: as defined in Section 10.1.25(a).

Mortgage Policy: as defined in Section 10.1.25(b).

Mortgage Property: any Real Estate, whether owned or leased, (a) for which any U.S. Facility Loan Party delivered to the Agent, for the benefit of the U.S. Facility Secured Parties, a Mortgage in connection with the Existing Credit Agreement (or any prior manifestations thereof), (b) acquired by any U.S. Facility Loan Party after the Closing Date and (i) in the case of owned Real Estate, has a book value or cost (whichever is greater) in excess of $10,000,000 and (ii) in the case of leased Real Estate, has annual rent payable by the U.S. Borrower or any of its Subsidiaries in excess of $5,000,000, or (c) for which a Mortgage is granted or required to be granted to secure the obligations under the terms of any Other Secured Debt Documents.

Multiemployer Plan: any employee benefit plan of the type described in Section 4001(a)(3) of ERISA, to which any Loan Party or ERISA Affiliate makes or is obligated to make contributions, or during the preceding five plan years, has made or been obligated to make contributions, but excluding, for greater certainty, any Canadian Multi-Employer Plan.

Municipal Government Account: an Account in which the Account Debtor with respect to such Account is a state, province or a political subdivision, department, agency or instrumentality thereof.

Net Amount: with respect to U.S. Eligible Accounts (including any Federal Government Accounts that are Eligible Accounts) or Canadian Eligible Accounts (including any Canadian Government Accounts that are Eligible Accounts), as applicable, the gross amount of such Accounts less (a) sales, excise or similar taxes included in the amount thereof, and (b) returns, rebates, discounts, claims, credits and allowances of any nature at any time issued, owing, granted, outstanding, available or claimed with respect thereto.

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Net Cash Proceeds:

(p)                                 with respect to any Disposition by the U.S. Borrower or any of its Subsidiaries, the excess, if any, of (i) the sum of cash and Cash Equivalents received in connection with such transaction (including any cash or Cash Equivalents received by way of deferred payment pursuant to, or by monetization of, a note receivable or otherwise, but only as and when so received) over (ii) the sum of (A) the principal amount of any Debt that is secured by the applicable asset and that is required to be repaid in connection with such transaction (other than Debt under the Loan Documents), (B) the reasonable and customary out-of-pocket expenses incurred by the U.S. Borrower or such Subsidiary in connection with such transaction, (C) income taxes reasonably estimated to be actually payable within two years of the date of the relevant transaction as a result of any gain recognized in connection therewith; provided that, if the amount of any estimated taxes pursuant to subclause (C) exceeds the amount of taxes actually required to be paid in cash in respect of such Disposition, the aggregate amount of such excess shall constitute Net Cash Proceeds, (D) amounts provided as a reserve, in accordance with GAAP, against (x) liabilities under any indemnification obligations associated with such Disposition, or (y) any liabilities retained by the U.S. Borrower or its Subsidiaries associated with the properties sold in the Disposition, and (E) the U.S. Borrower’s good faith estimate of payments required to be made with respect to unassumed liabilities relating to the properties sold within one hundred eighty (180) days of a Disposition (provided that, to the extent such cash proceeds are not used to make payments in respect of such unassumed liabilities within one hundred eighty (180) days of such Disposition, such cash proceeds shall constitute Net Cash Proceeds); and

(q)                                 with respect to the issuance and sale of the Senior High Yield Notes, or the incurrence or issuance of any other Debt by the U.S. Borrower or any of its Subsidiaries, the excess of (i) the sum of the cash and Cash Equivalents received in connection with such transaction over (ii) the underwriting discounts and commissions, and other reasonable and customary out-of-pocket expenses, incurred by the U.S. Borrower or such Subsidiary in connection therewith.

Non-Accounts Collateral: “Collateral” as defined in the U.S. Security Agreement and any other property of any U.S. Facility Loan Party which has been pledged to secure the U.S. Facility Obligations pursuant to any Security Document, but excluding the U.S. Accounts Collateral and U.S. Eligible Pledged Cash.

Notes: each Revolver Note or other promissory note executed by a Borrower to evidence any Obligations.

Notice of Borrowing: a Notice of Borrowing to be provided by the Loan Party Agent to request a Borrowing of Loans, in the form attached hereto as Exhibit B or otherwise in form reasonably satisfactory to the Agent.

Notice of Conversion/Continuation: a Notice of Conversion/Continuation to be provided by the Loan Party Agent to request a conversion or continuation of any Loans as LIBOR Loans or Canadian BA Rate Loans, in the form attached hereto as Exhibit C or otherwise in form reasonably satisfactory to the Agent.

NPL: the National Priorities List under CERCLA.

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Obligations: all (a) principal of and premium, if any, on the Loans, (b) U.S. LC Obligations and other obligations of the U.S. Facility Loan Parties with respect to Letters of Credit issued for the account of the U.S. Borrower, (c) Canadian LC Obligations and other obligations of the Canadian Facility Loan Parties with respect to Letters of Credit issued for the account of the Canadian Borrower, (d) interest, expenses, fees and other sums payable by the Loan Parties under the Loan Documents (including, without limitation, pursuant to Section 3.4), (e) obligations of the Loan Parties under any indemnity for Claims, (f) Extraordinary Expenses, (g) Bank Product Debt, (h) Secured Hedging Obligations, and (i) other Debts, obligations and liabilities of any kind owing by the Loan Parties pursuant to the Loan Documents, whether now existing or hereafter arising, whether evidenced by a note or other writing, whether allowed in any Insolvency Proceeding, whether arising from an extension of credit, issuance of a letter of credit, acceptance, loan, guarantee, indemnification or otherwise, and whether direct or indirect, absolute or contingent, due or to become due, primary or secondary, or joint or several.

OFAC:  as defined in Section 9.1.28(b)(v).

Order:  as defined in Section 9.1.28(a).

Ordinary Course of Business: with respect to any Person, the ordinary course of business of such Person, consistent with past practices or, with respect to actions taken by such Person for which no past practice exists, consistent with past practices of similarly situated companies, and, in each case, undertaken in good faith.

Organic Documents: with respect to any Person, its charter, certificate or articles of incorporation, bylaws, articles of organization, limited liability agreement, operating agreement, members agreement, shareholders agreement, partnership agreement, certificate of partnership, certificate of formation, memorandum of association, voting trust agreement, or similar agreement or instrument governing the formation or operation of such Person.

OSHA: the Occupational Safety and Hazard Act of 1970, as amended.

Other Agreement: each Note, LC Document, Fee Letter, Lien Waiver, Intercreditor Agreement, Ratification Agreement, Borrowing Base Certificate, Compliance Certificate, Borrower Materials, Hedging Agreement between a Loan Party and a Secured Party, or other document, instrument, certificate, notice, report or agreement (other than this Agreement or a Security Document) now or hereafter delivered by or on behalf of any Loan Party to the Agent or a Lender in connection with any transactions relating hereto.

Other List:  as defined in Section 10.2.17.

Other Permitted Canadian Debt: Debt of any Canadian Subsidiary; provided, that no Default or Event of Default shall exist either immediately or after the incurrence thereof, and the aggregate amount of all Other Permitted Canadian Debt then outstanding shall not exceed thirty percent (30%) of the total assets of the Canadian Domiciled Loan Parties, as determined in accordance with GAAP, as shown in a footnote providing consolidating financial information relating to the most recent consolidated balance sheet of the U.S. Borrower and its Subsidiaries.

Other Permitted Canadian Debt Documents: the documents executed or to be executed in connection with any Other Permitted Canadian Debt.

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Other Secured Debt: Debt secured by a Lien arising under any Other Secured Debt Agreement; provided that (a) the terms of such Other Secured Debt do not provide for any scheduled repayment, mandatory redemption or sinking fund obligation prior to the date that is six (6) months after the Facility Termination Date, (b) the final maturity and weighted average life to maturity of any such Other Secured Debt shall not be prior to the date that is six (6) months after the Facility Termination Date, (c) the covenants (including any financial covenants) and events of default applicable thereto shall be not more restrictive to the U.S. Borrower and its Subsidiaries in all material respects than those contained herein; (d) no such Debt shall contain a cross default to other Debt on terms less favorable to the U.S. Borrower and its Subsidiaries than under each Senior High Yield Indenture; and (e) Liens incurred in connection with any Other Secured Debt shall not attach to any Accounts Collateral and shall be subject to an Intercreditor Agreement.

Other Secured Debt Agreement: a loan agreement, indenture or other document entered into in connection with Other Secured Debt, between the U.S. Borrower and a trustee, collateral agent, administrative agent or other agent for the benefit of certain lenders, in form and substance reasonably satisfactory to the Agent and the Required Lenders prior to the closing of such Other Secured Debt Agreement.

Other Secured Debt Documents: the documents executed or to be executed in connection with any Other Secured Debt.

Other Taxes: all present or future stamp or documentary taxes or any other similar excise or property taxes, charges or similar levies arising from any payment made under any Loan Document or from the execution, delivery or enforcement of, or otherwise with respect to, any Loan Document, excluding, however, such amounts imposed as a result of an assignment, grant of a participation or other transfer other than an assignment, grant of participation or other transfer made pursuant to Section 3.8.

Overadvance: a Canadian Overadvance or U.S. Overadvance, as the context requires.

Overadvance Loan: a Canadian Overadvance Loan and/or a U.S. Overadvance Loan, as the context requires.

Participant: as defined in Section 13.2.1.

Patent Security Agreement: each agreement pursuant to which a U.S. Facility Loan Party grants to the Agent a Lien on such U.S. Facility Loan Party’s patents, patent applications and other related rights as security for any of the U.S. Facility Obligations.

Patriot Act: the Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001, Pub. L. No. 107-56, 115 Stat. 272 (2001).

Payment Item: each check, draft or other item of payment payable to a Loan Party, including those constituting proceeds of any Collateral.

PBA: the Pensions Benefits Act (Ontario) or any other Canadian federal or provincial pension benefit standards legislation pursuant to which any Canadian Pension Plan is registered.

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PBGC: the Pension Benefit Guaranty Corporation.

Pension Plan: any employee pension benefit plan (as defined in Section 3(2) of ERISA), other than a Multiemployer Plan, that is subject to Title IV of ERISA and is sponsored or maintained by any Loan Party or ERISA Affiliate or to which the Loan Party or ERISA Affiliate contributes or has an obligation to contribute, or in the case of a multiple employer or other plan described in Section 4064(a) of ERISA, has made contributions at any time during the preceding five plan years, and, for greater certainty, excludes any Canadian Pension Plan or any Canadian Multi-Employer Plan.

Perfection Certificates:  the U.S. Perfection Certificate and the Canadian Perfection Certificate, each as supplemented by any U.S. Perfection Certificate Supplements or Canadian Perfection Certificate Supplements, collectively.

Permitted Acquisition: any transaction or series of related transactions for the direct or indirect (i) acquisition of all or substantially all of the property of any Person, or of any business or division of any Person; (ii) acquisition of in excess of fifty percent (50%) of the Equity Interests of any Person, and otherwise causing such Person to become a Subsidiary of such Person; or (iii) merger or consolidation or any other combination with such any Person, if each of the following conditions is met:

(r)                                    no Default or Event of Default then exists or would result therefrom;

(s)                                   such Person shall be organized, incorporated or amalgamated in the United States, any state thereof, the District of Columbia, Canada or any province thereof or Puerto Rico;

(t)                                    none of the U.S. Borrower or any of its Subsidiaries shall, in connection with any such transaction, assume or remain liable with respect to any Debt or other liability of the related seller or the business, Person or properties acquired, except to the extent permitted under Section 10.2.2;

(u)                                 the Person or business to be acquired shall be, or shall be engaged in, a business of the type the U.S. Borrower and its Subsidiaries are engaged on the Closing Date and any business reasonably related, ancillary or complementary to the business in which the U.S. Borrower and its Subsidiaries are engaged on the Closing Date;

(v)                                 the board of directors of the Person to be acquired shall not have indicated publicly its opposition to the consummation of such acquisition (which opposition has not been publicly withdrawn);

(w)                               all transactions in connection therewith shall be consummated in accordance with all applicable laws of all applicable Governmental Authorities;

(x)                                 at least ten (10) Business Days prior to the proposed date of consummation of the transaction, the U.S. Borrower shall have delivered to the Agent a certificate signed by a Responsible Officer of the U.S. Borrower certifying that (A) such transaction complies with this definition (which shall have attached thereto reasonably detailed backup data and calculations showing such compliance), and (B) such transaction could not reasonably be expected to result in a Material Adverse Effect;

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(y)                                 Liquidity (after giving pro forma effect to such acquisition both as of the proposed date of consummation of the transaction and during the forty-five (45) consecutive day period immediately preceding the proposed date of consummation of the transaction) is greater than or equal to fifteen (15%) of the Commitments (after giving pro forma effect to such acquisition, any Debt incurred in connection therewith and the Loans to be made in connection therewith); and

(z)                                  within three (3) Business Days after the date of consummation of the transaction, the U.S. Borrower shall have delivered to the Agent a certificate signed by a Responsible Officer of the U.S. Borrower certifying that (i) attached thereto are complete and correct copies of the material agreements entered into in connection with such transaction, (ii) such transaction has been consummated in accordance with the terms of such agreements, and (iii) such transaction has not resulted in a Material Adverse Effect.

Permitted Asset Disposition: a Disposition permitted pursuant to Section 10.2.5.

Permitted Business: the business of the U.S. Borrower and its Subsidiaries as existing on the Closing Date and any other businesses that are the same, similar or reasonably related, ancillary or complementary thereto and reasonable extensions thereof.

Permitted Holders: (a) any of Alan S. McKim, his spouse, ancestors, siblings, descendants (including children or grandchildren by adoption) and the descendants of any of his siblings; (b) in the event of the incompetence or death of any of the Persons described in clause (a), such Person’s estate, executor, administrator, committee or other personal representative, in each case who at any particular date shall beneficially own or have the right to acquire, directly or indirectly, Equity Interests of the U.S. Borrower; (c) any trust created for the benefit of the Persons described in clause (a) or (b) or any trust for the benefit of any such trust; or (d) any Person controlled by any of the Persons described in clause (a), (b), or (c).  For purposes of this definition, “control,” as used with respect to any Person, shall mean the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of such Person, whether through ownership of voting securities or by contract or otherwise.

Permitted Lien: as defined in Section 10.2.1.

Person: any individual, corporation, limited liability company, unlimited liability company, partnership, joint venture, association, trust, unincorporated organization, Governmental Authority or other entity.

Plan: any “employee benefit plan” (as defined in Section 3(3) of ERISA), and any payroll practice and other employee benefit plan, policy, program, agreement or arrangement, including retirement, pension, profit sharing, employment, individual consulting or other compensation agreement, collective bargaining agreement, bonus or other incentive compensation, retention, stock purchase, equity or equity-based compensation, deferred compensation, change in control, severance, sick leave, vacation, loans, salary continuation, hospitalization, health, life insurance, educational assistance, or other fringe benefit or perquisite plan, policy, agreement which is or was sponsored, maintained or contributed to by, or required to be contributed to by, any Loan Party or Affiliate thereof or with respect to which a Loan Party or ERISA Affiliate has or could have any obligation or liability, contingent or otherwise, but excluding, for greater certainty, a Canadian Employee Plan.

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Platform:  as defined in Section 14.3.3.

PPSA: the Personal Property Security Act (Ontario) and the regulations thereunder; provided, however, if validity, perfection and effect of perfection and non-perfection of the Agent’s security interest in and Lien on any Collateral of any Canadian Domiciled Loan Party are governed by the personal property security laws of any jurisdiction other than Ontario, PPSA shall mean those personal property security laws (including the Civil Code of Quebec) in such other jurisdiction for the purposes of the provisions hereof relating to such validity, perfection, and effect of perfection and non-perfection and for the definitions related to such provisions, as from time to time in effect.

“pro forma basis” or “pro forma effect”: for purposes of determining compliance with any test or covenant hereunder, a calculation based on the assumption that the applicable Permitted Acquisition, incurrence of Debt, Investment, Restricted Payment or other event, as applicable, occurred as of the first day of the applicable period of measurement of such test or covenant.

Pro Rata:  (a) when used with reference to a Lender’s (i) share on any date of the total Facility Commitments to a Borrower, (ii) participating interest in LC Obligations (if applicable) to such Borrower, (iii) share of payments made by such Borrower with respect to such Borrower’s Obligations, (iv) increases or reductions to the Canadian Revolver Commitments or the U.S. Revolver Commitments pursuant to Section 2.1.4 or 2.1.7, and (v) obligation to pay or reimburse Agent for Extraordinary Expenses owed by or in respect of such Borrower or to indemnify any Indemnitees for Claims relating to such Borrower, a percentage (expressed as a decimal, rounded to the ninth decimal place) derived by dividing the amount of the Facility Commitment of such Lender to such Borrower on such date by the aggregate amount of the Facility Commitments of all Lenders to such Borrower on such date (or if such Facility Commitments have been terminated, by reference to the respective Facility Commitments as in effect immediately prior to the termination thereof) or (b) when used for any other reason, a percentage (expressed as a decimal, rounded to the ninth decimal place) derived by dividing the aggregate amount of the Lender’s Commitments on such date by the aggregate amount of the Commitments of all Lenders on such date (or if any such Commitments have been terminated, such Commitments as in effect immediately prior to the termination thereof).

Proceeds of Crime Act:  the Proceeds of Crime (Money Laundering) and Terrorist Financing Act (Canada) (or any successor statute), as amended from time to time, and includes all regulations thereunder.

Property: any interest in any kind of property or asset, whether real, personal or mixed, or tangible or intangible.

Protective Advance: as defined in Section 2.1.6.

Qualified Equity Interests: any Equity Interests that are not Disqualified Equity Interests.

RCRA: the Resource Conservation and Recovery Act, as amended (42 U.S.C. §§ 6991-6991i).

Ratification Agreement: that certain Confirmation and Ratification of Ancillary Loan Documents dated as of the date hereof, by and among each of the Loan Parties and the Agent.

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Real Estate: collectively, all right, title and interest (including any leasehold, mineral or other estate) in and to any and all parcels of or interests in real Property owned, leased or operated by any Person, whether by lease, license or other means, together with, in each case, all easements, servitudes, hereditaments and appurtenances relating thereto, all improvements and appurtenant fixtures and equipment and all general intangibles and contract rights and other property and rights incidental to the ownership, lease or operation thereof.

Report: as defined in Section 12.2.3.

Reportable Event: any of the events set forth in Section 4043(b) or (c) of ERISA and regulations thereunder.

Reporting Trigger Period: the period commencing on any day that either (a) a Default or Event of Default occurs or (b) Liquidity is less than the greater of (i) $50,000,000 and (ii) twelve and one half of one percent (12.5%) of the Commitments.

Required Facility Lenders:  at any date of determination thereof, at least two (2) Lenders having Facility Commitments to a Borrower representing more than fifty percent (50%) of the aggregate Facility Commitments to such Borrower at such time; provided, however, that if and for so long as any such Lender shall be a Defaulting Lender, the term “Required Facility Lenders” shall mean at least two (2) Lenders (excluding each Defaulting Lender) having Facility Commitments to such Borrower representing more than fifty percent (50%) of the aggregate Facility Commitments to such Borrower (excluding the Facility Commitments of each Defaulting Lender) at such time; provided further, however, that if all of the Facility Commitments to such Borrower have been terminated, the term “Required Facility Lenders” shall mean Lenders to such Borrower holding Revolver Loans to, and participating interests in LC Obligations (excluding amounts specified in clause (c) of the definition of each of U.S. LC Obligations and Canadian LC Obligations) owing by, such Borrower representing more than fifty percent (50%) of the aggregate outstanding principal amount of Revolver Loans and LC Obligations (excluding amounts specified in clause (c) of such definition) owing by such Borrower at such time.

Required Lenders:  at any date of determination thereof, at least two (2) Lenders having Facility Commitments representing more than fifty percent (50%) of the aggregate Facility Commitments at such time; provided, however, that for so long as any Lender shall be a Defaulting Lender, the term “Required Lenders” shall mean at least two (2) Lenders (excluding such Defaulting Lender) having Commitments representing more than fifty percent (50%) of the aggregate Commitments (excluding the Commitments of each Defaulting Lender) at such time; provided further, however, that if any of the Facility Commitments have been terminated, the term “Required Lenders” shall be  calculated using (x) in lieu of such Lender’s terminated Facility Commitment, the outstanding principal amount of the Revolver Loans by such Lender to, and participation interests in LC Obligations (excluding amounts specified in clause (c) of the definition of each of U.S. LC Obligations and Canadian LC Obligations) owing by, such Borrower and (y) in lieu of the aggregate Commitments under such terminated Facility Commitment, the aggregate outstanding Revolver Loans to, and LC Obligations (excluding amounts specified in clause (c) of the definition of each of U.S. LC Obligations and Canadian LC Obligations) owing by such Borrower.

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Reserve Percentage: the reserve percentage (expressed as a decimal, rounded up to the nearest 1/8th of 1%) applicable to member banks under regulations issued by the Board of Governors for determining the maximum reserve requirement for Eurocurrency liabilities.

Reset Date:  as defined in Section 5.12.

Responsible Officer: the chief executive officer, president, vice president, chief financial officer, treasurer, assistant treasurer or controller of a Loan Party.  Any document delivered hereunder that is signed by a Responsible Officer of a Loan Party shall be conclusively presumed to have been authorized by all necessary corporate, partnership and/or other action on the part of such Loan Party and such Responsible Officer shall be conclusively presumed to have acted on behalf of such Loan Party.

Restricted Payment: any dividend or other distribution (whether in cash, securities or other property) with respect to any capital stock or other Equity Interest of the U.S. Borrower or any of its Subsidiaries, or any payment (whether in cash, securities or other property), including any sinking fund or similar deposit, on account of the purchase, redemption, retirement, defeasance, acquisition, cancellation or termination of any such capital stock or other Equity Interest, or on account of any return of capital to any such Person’s stockholders, partners or members (or the equivalent of any thereof), or any option, warrant or other right to acquire any such dividend or other distribution or payment.

Restricted Subsidiary: as defined in either Senior High Yield Indenture as in effect on the Closing Date.

Revolver Facilities: as defined in Section 14.11(a)(vi).

Revolver Loan: a loan made pursuant to Section 2.1.1, and any Swingline Loan, Overadvance Loan or Protective Advance.

Revolver Notes: collectively, the U.S. Revolver Notes and the Canadian Revolver Notes.

Royalties: all royalties, fees, expense reimbursement and other amounts payable by a Loan Party or a Subsidiary under a License Agreement.

RPMRR:  Quebec Register of Personal and Movable Real Rights or Registre des droits personnels et reels mobiliers du Quebec.

S&P: Standard & Poor’s Ratings Services, a Standard & Poor’s Financial Services LLC business, and its successors.

Safety-Kleen:  Safety-Kleen, Inc., a Delaware corporation.

Safety-Kleen Merger: the merger of Merger Sub with and into Safety-Kleen, with Safety-Kleen as the surviving entity of such merger and a direct or indirect wholly-owned subsidiary of the U.S. Borrower, pursuant to and in accordance with the Safety-Kleen Merger Documents.

Safety-Kleen Merger Agreement: the Agreement and Plan of Merger dated as of October 26, 2012, among the U.S. Borrower, Merger Sub and Safety-Kleen.

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Safety-Kleen Merger Documents: collectively, (a) the Safety-Kleen Merger Agreement, (b) the Certificate of Merger (as defined in the Safety-Kleen Merger Agreement), and (c) all other material agreements and documents entered into or delivered pursuant thereto or in connection with the Safety-Kleen Merger, each in the form delivered to the Agent prior to the Closing Date.

Sale and Leaseback Transaction:  as defined in Section 10.2.18.

SDN List:  as defined in Section 10.2.17.

SEC: the Securities and Exchange Commission, or any Governmental Authority succeeding to any of its principal functions.

Secured Hedging Obligations: Canadian Secured Hedging Obligations and U.S. Secured Hedging Obligations, as applicable.

Secured Parties: Canadian Facility Secured Parties and/or U.S. Facility Secured Parties, as the context requires.

Securities Act: the Securities Act of 1933, as amended.

Security Documents: this Agreement, each Guarantee, U.S. Security Agreements, Mortgages, Patent Security Agreements, Trademark Security Agreements, Canadian Security Agreements, Deposit Account Control Agreements and all other documents, instruments and agreements now or hereafter securing (or given with the intent to secure) any Obligations.

Senior High Yield Debt: unsecured Debt arising under the Senior High Yield Notes.

Senior High Yield Documents: the documents executed or to be executed in connection with each Senior High Yield Indenture.

Senior High Yield Notes: any Senior High Yield Notes now or hereafter issued pursuant to each Senior High Yield Indenture.

Senior High Yield Indenture: each of (a) the Indenture dated as of July 30, 2012, among the U.S. Borrower, its U.S. Subsidiaries party thereto, and U.S. Bank National Association, as trustee, as such Indenture may hereafter be supplemented or amended in accordance with its terms, and (b) the Indenture dated as of December 7, 2012, among the U.S. Borrower, its U.S. Subsidiaries party thereto and U.S. Bank National Association, as trustee, as such Indenture may hereafter be supplemented or amended in accordance with its terms.

Settlement Report: a report delivered by the Agent to the Applicable Lenders summarizing the Loans and, if applicable, participations in U.S. LC Obligations (excluding amounts specified in clause (c) of such definition) of the U.S. Borrower and Canadian LC Obligations (excluding amounts specified in clause (c) of such definition) of the Canadian Borrower outstanding as of a given settlement date, allocated to the Applicable Lenders on a Pro Rata basis in accordance with their Commitments.

Significant Subsidiary: with respect to any Person, (a) any Subsidiary of such Person that satisfies the criteria for a “significant subsidiary” as defined in Regulation S-X under the

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Securities Act as such Regulation is in effect on the Closing Date (assuming such Person is the registrant referred to in the definition of “significant subsidiary” in such Regulation) and (b) any Subsidiary that, when aggregated with all other Subsidiaries that are not otherwise Significant Subsidiaries and as to which any event described in clause (e), (f), (g) or (h) of Section 11.1 has occurred and is continuing, would constitute a Significant Subsidiary under clause (a) of this definition; provided that, in the case of clause (a) and clause (b) of this definition, each reference to “10 percent” in the criteria for a “significant subsidiary” as defined in Regulation S-X under the Securities Act as such Regulation is in effect on the Closing Date shall be replaced with the words “5 percent”.

Solidary Claim: as defined in Section 12.1.1(b).

Solvent: as it relates to (a) (i) any Canadian Facility Loan Party, such Canadian Facility Loan Party, taken as a whole with the other Canadian Facility Loan Parties and (ii) any U.S. Facility Loan Party, taken as a whole with the other U.S. Facility Loan Parties, in each case, (w) is adequately capitalized, (x) owns assets, the value of which, on a going concern basis, exceed the liabilities of such Loan Party, (y) will have sufficient working capital to pay its debts as they become due and (z) has not incurred (by way of assumption or otherwise) any obligations or liabilities (contingent or otherwise), or made any conveyance in connection therewith, in each case, with actual intent to hinder, delay or defraud either present or future creditors of such Person or any of its Affiliates; (b) as to any other Person (other than a Person incorporated or organized under the laws of Canada or any province or territory of Canada), such Person (u) owns Property whose fair salable value is greater than the amount required to pay all of its debts (including contingent, subordinated, unmatured and unliquidated liabilities); (v) owns Property whose present fair salable value (as defined below) is greater than the probable total liabilities (including contingent, subordinated, unmatured and unliquidated liabilities) of such Person as they become absolute and matured; (w) is able to pay all of its debts as they mature; (x) has capital that is not unreasonably small for its business and is sufficient to carry on its business and transactions and all business and transactions in which it is about to engage; (y) is not “insolvent” within the meaning of Section 101(32) of the U.S. Bankruptcy Code; and (z) has not incurred (by way of assumption or otherwise) any obligations or liabilities (contingent or otherwise) or made any conveyance in connection therewith, with actual intent to hinder, delay or defraud either present or future creditors of such Person or any of its Affiliates; and (c) as to any other Person incorporated or organized under the laws of Canada or any province or territory of Canada, is not an “insolvent person” as defined in the BIA.  “Fair salable value” means the amount that could be obtained for assets within a reasonable time, either through collection or through sale under ordinary selling conditions by a capable and diligent seller to an interested buyer who is willing (but under no compulsion) to purchase.

Subordinated Debt: unsecured Debt of the U.S. Borrower or its Subsidiaries that is by its terms expressly subordinated, on terms acceptable to the Agent and Required Lenders, to the Full Payment of all Obligations, provided that (i) the terms of such Debt may allow for payment of regularly scheduled payments of interest so long as no Event of Default shall have occurred and be continuing at the time such payment is made, (ii) the final maturity of such Debt is at least one  (1) year after the Facility Termination Date, (iii) the terms of such Debt provide that no payments of principal shall or may occur prior to the Full Payment of all Obligations, (iv) the covenants and events of default applicable thereto shall be at least as favorable to the U.S. Borrower and its Subsidiaries in all material respects as those contained herein, but in any event no financial maintenance covenants shall be applicable thereto and no such Debt shall contain a

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cross-default to the Debt under the Loan Documents for a non-payment default and (v) the remedies with respect thereto shall be subject to customary standstill provisions acceptable to the Agent; provided further that the terms of such Debt may provide for payments of principal or require the issuer thereof to redeem or repurchase such Debt upon the occurrence of a change in control or asset sale occurring prior to maturity if such terms provide that the issuer thereof will not make any such payments or redeem or repurchase any such Debt pursuant to such provisions prior to the Full Payment of all Obligations.

Subordinated Provisions:  as defined in Section 11.1(m).

Subsidiary: with respect to any Person, a corporation, partnership, joint venture, limited liability company or other business entity of which a majority of the shares of securities or other interests having ordinary voting power for the election of directors or other governing body (other than securities or interests having such power only by reason of the happening of a contingency) are at the time beneficially owned, or the management of which is otherwise controlled, directly, or indirectly through one or more intermediaries, or both, by such Person.  Unless otherwise specified, all references herein to a “Subsidiary” or to “Subsidiaries” shall refer to a Subsidiary or Subsidiaries of the U.S. Borrower.

Swingline Loan: a U.S. Swingline Loan or a Canadian Swingline Loan, as applicable.

Taxes: all present or future taxes, levies, imposts, duties, deductions, withholdings (including backup withholding), assessments, fees or other charges imposed by any Governmental Authority, including any interest, additions to tax or penalties applicable thereto.

Termination Event:  (a) the voluntary full or partial wind up of a Canadian Pension Plan by a Canadian Facility Loan Party; (b) the institution of proceedings by any Governmental Authority to terminate in whole or in part or have a trustee appointed to administer a Canadian Pension Plan; or (c) any other event or condition which might constitute grounds for the termination of, winding up or partial termination of winding up or the appointment of a trustee to administer, any Canadian Pension Plan.

Threshold Amount: $25,000,000.

Total Revolver Exposure:  as of any date of determination the sum of the Canadian Revolver Exposure and the U.S. Revolver Exposure on such date of determination.

Trademark Security Agreement: each agreement pursuant to which a U.S. Facility Loan Party grants to the Agent a Lien on such U.S. Facility Loan Party’s interests in trademarks, trademark applications, service marks, service mark applications and other related property and rights as security for any of the U.S. Facility Obligations.

Transactions: collectively, (a) the entering into by the Loan Parties of the Loan Documents to which they are or are intended to be a party, and the borrowings (if any) hereunder on the Closing Date and application of the proceeds as contemplated hereby, and (b) the payment of the fees and expenses incurred in connection with the consummation of the foregoing.

Transferee: any actual or potential Eligible Assignee, Participant or other Person acquiring an interest in any Obligations.

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Type: any type of a Loan (i.e., U.S. Base Rate Loan, LIBOR Loan, Canadian BA Rate Loan, Canadian Base Rate Loan, or Canadian Prime Rate Loan) and which shall be either an Interest Period Loan or a Floating Rate Loan.

UCC: the Uniform Commercial Code as in effect in the State of New York or, when the laws of any other jurisdiction govern the creation, perfection, priority or enforcement of any Lien, the Uniform Commercial Code of such jurisdiction.

Unfunded Pension Liability: as of any date, the excess of the present value of a Pension Plan’s benefit liabilities under Section 4001(a)(16) of ERISA determined on a plan termination basis in accordance with actuarial assumptions at such time consistent with those prescribed by the PBGC for purposes of Section 4044 of ERISA, over the current value of that Pension Plan’s assets, and includes any unfunded going-concern deficit or solvency deficiency as identified in an actuarial valuation report prepared for the purposes of the PBA and filed with any applicable Governmental Authority in respect of any Canadian Pension Plan.

Unrestricted Subsidiary: as defined in either Senior High Yield Indenture as in effect on the Closing Date.

U.S. Accounts Collateral:  “Accounts Collateral” as defined in the U.S. Security Agreement.

U.S. Auto-Extension Letter of Credit: as defined in Section 2.2.1(e).

U.S. Availability: as of any date of determination, the U.S. Borrowing Base as of such date of determination minus the U.S. Revolver Exposure on such date of determination.

U.S. Availability Reserve: as of the date of determination, such amount as the Agent may from time to time establish and revise in good faith reducing the amount of the U.S. Revolver Loans and U.S. LC Obligations which would otherwise be available to the U.S. Borrower under the lending formula provided for herein: (a) to reflect events, conditions, contingencies or risks which, as determined by the Agent in good faith, adversely affect, or would have a reasonable likelihood of adversely affecting, (i) the U.S. Facility Collateral, (ii) the assets, business or prospects of any U.S. Domiciled Loan Party, or (iii) the security interests and other rights of the Agent in the U.S. Facility Collateral; (b) to reflect the Agent’s good faith belief that any collateral report or financial information furnished by or on behalf of any U.S. Domiciled Loan Party to the Agent is or may have been incomplete, inaccurate or misleading in any material respect; (c) to reflect the U.S. Secured Hedging Reserve; (d) in respect of any state of facts which the Agent determines in good faith constitutes a Default or Event of Default; (e) to reflect the Agent’s good faith estimate of the amount necessary to reflect changes in applicable currency exchange rates or currency exchange markets; (f) to reflect the U.S. Dilution Reserve Percentage; (g) to reflect the U.S. Bank Product Reserve; (h) to reflect all accrued Royalties of the U.S. Domiciled Loan Parties, whether or not then due and payable by such U.S. Domiciled Loan Party; (i) to reflect the aggregate amount of liabilities secured by Liens upon any Accounts of the U.S. Domiciled Loan Parties that are senior to the Agent’s Liens (but imposition of any such reserve shall not waive an Event of Default arising therefrom); (j) to reflect the Canadian Overadvance Loan Balance, if any, outstanding on such date; and (k) to reflect deferred revenue set forth on the consolidated balance sheet of the U.S. Borrower and its Subsidiaries or as otherwise determined by the Agent.  To the extent the Agent may revise the lending formulas

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used to determine the U.S. Borrowing Base or establish new criteria or revise existing criteria for U.S. Eligible Accounts so as to address any circumstances, condition, event or contingency in a manner satisfactory to the Agent, the Agent shall not establish a U.S. Availability Reserve for the same purpose.  The amount of the U.S. Availability Reserve established by the Agent shall have a reasonable relationship to the event, condition or other matter which is the basis for such as reserve as determined by the Agent in good faith.

U.S. Bank Product Reserve: the aggregate amount of reserves, as established by the Agent from time to time by the Agent in its commercially reasonable credit judgment to reflect the reasonably anticipated liabilities in respect of the then outstanding Bank Product Debt of the U.S. Facility Loan Parties and their Subsidiaries.

U.S. Base Rate: for any day, a per annum rate equal to the greater of (a) the U.S. Prime Rate for such day; (b) the Federal Funds Rate for such day, plus one-half of one percent (0.50%); or (c) LIBOR for a thirty (30) day interest period as determined on such day, plus one percent (1%).

U.S. Base Rate Loan: any Loan that bears interest based on the U.S. Base Rate.

U.S. Borrower: as defined in the preamble to this Agreement.

U.S. Borrowing Base: on any date of determination, an amount equal to the lesser of (a) the Maximum U.S. Facility Amount minus the Canadian Overadvance Loan Balance, if any, outstanding on such date; and (b) the sum of (i) eighty-five percent (85%) of the Net Amount of U.S. Eligible Accounts (including all Municipal Government Accounts that are U.S. Eligible Accounts), subject to a cap of $15,000,000 on unbilled U.S. Eligible Accounts, plus (ii) the lesser of (A) eighty-five percent (85%) of the Net Amount of Federal Government Accounts that are U.S. Eligible Accounts (which amount may include Accounts that are not U.S. Eligible Accounts solely because such accounts are not compliant with the Assignment of Claims Act) and (B) $5,000,000, plus (iii) one hundred percent (100%) of U.S. Eligible Pledged Cash, minus (iv) the U.S. Availability Reserve.

U.S. Dilution Percentage: a percentage, calculated at the end of each field examination with respect to the U.S. Facility Collateral by the Agent, reflecting the amount of dilution of U.S. Eligible Accounts that should (based on the results of such field examination), in the determination of the Agent, acting reasonably, be taken into account when calculating the U.S. Borrowing Base; provided that each such percentage shall be represented by a whole number without decimal places.  The U.S. Dilution Percentage shall remain in effect from and after each such field examination until the completion of a new field examination and the determination by the Agent of a new U.S. Dilution Percentage, at which time the U.S. Dilution Percentage shall reflect such new field examination and the determination by the Agent of such new U.S. Dilution Percentage.

U.S. Dilution Reserve Percentage: as of any time, the U.S. Dilution Percentage as of such time minus five percent (5%); provided that if the U.S. Dilution Percentage as of such time is below five percent (5%), then the U.S. Dilution Reserve Percentage as of such time shall be deemed to be zero percent (0%).

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U.S. Domiciled Loan Party: the U.S. Borrower and each U.S. Subsidiary of the U.S. Borrower, in each case, now or hereafter party hereto as a Loan Party; and “U.S. Domiciled Loan Parties” means all such Persons, collectively.

U.S. Dominion Account: a special account established by the U.S. Facility Loan Parties at Bank of America or another bank acceptable to the Agent, over which the Agent has dominion and control (which may be exercised during a Cash Trigger Period).

U.S. Eligible Accounts: Accounts of the U.S. Borrower and the other U.S. Domiciled Loan Parties subject to the Lien of the Agent, the value of which shall be determined by taking into consideration, among other factors, their book value determined in accordance with GAAP; provided, however, that none of the following classes of Accounts shall be deemed to be U.S. Eligible Accounts:

(aa)                          Accounts that do not arise out of sales of goods or rendering of services in the ordinary course of the U.S. Borrower’s or the relevant U.S. Domiciled Loan Party’s business;

(bb)                          Accounts payable other than in Dollars or that are otherwise on terms other than those normal or customary in the U.S. Borrower’s or the relevant U.S. Domiciled Loan Party’s business;

(cc)                            Accounts more than ninety (90) days past original invoice date;

(dd)                          Accounts owing from any Person that is an Affiliate of a Loan Party;

(ee)                            Accounts arising out of sales to Account Debtors outside the United States and Canada, unless the Account is supported by a letter of credit (the original of which is delivered to and directly drawable by the Agent) or credit insurance satisfactory in all respects to the Agent;

(ff)                              Accounts owing from any Person from which an aggregate amount of fifty percent (50%) or more of the Accounts owing therefrom are otherwise ineligible;

(gg)                            Accounts in respect of Contra Accounts;

(hh)                          Accounts owing by a Government Authority (other than Municipal Government Accounts that, but for this clause (h), are U.S. Eligible Accounts), unless such Accounts are Federal Government Accounts that have been assigned to Agent in compliance with the Assignment of Claims Act; provided that Accounts that are not compliant with the Assignment of Claims Act may be included in the U.S. Borrowing Base as provided in clause (b) of the definition of U.S. Borrowing Base;

(ii)                                  Accounts in excess of twenty (20%) of all U.S. Eligible Accounts owing to any Account Debtor or Affiliate of such account debtor whose total Accounts comprise greater than twenty (20%) of all U.S. Eligible Accounts.

(jj)                                Accounts owing from any Person that (i) has disputed liability for any Accounts owing from such Person or (ii) has otherwise asserted any claim, demand or liability against any Loan Party or any Subsidiary thereof, whether by action, suit, counterclaim or otherwise; provided, that for purposes of subclause (j)(i), such Accounts shall be excluded only to the extent of the amounts being disputed by such Person at any date of determination;

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(kk)                          Accounts owing from any Person that is or becomes the subject of any action or proceeding of a type described in Section 11.1(f), or admits in writing an inability, or fails generally to pay, its debts as they become due, or is not Solvent, or is subject to any country sanctions program or specially designated nationals list maintained by the Office of Foreign Assets Control of the U.S. Treasury Department;

(ll)                                  Accounts (i) owing from any Person that is also a supplier to or creditor of a Loan Party or any Subsidiary thereof unless such Person has waived any right of setoff in a manner acceptable to the Agent or (ii) representing any manufacturer’s or supplier’s credits, discounts, incentive plans or similar arrangements entitling any Loan Party or any Subsidiary thereof to discounts on future purchase therefrom;

(mm)                  Accounts arising out of sales on a bill-and-hold, progress billing, guaranteed sale, sale-or-return, sale on approval or consignment basis or subject to any right of return, setoff or charge back;

(nn)                          Accounts with respect to which the representations and warranties set forth in Section 3 of the U.S. Security Agreement applicable to Accounts are not correct;

(oo)                          Accounts in respect of which the U.S. Security Agreement, after giving effect to the related filings of financing statements that have then been made, if any, does not or has ceased to create a valid and perfected first priority lien or security interest in favor of the Agent, on behalf of the U.S. Facility Secured Parties, securing the U.S. Facility Obligations; and

(pp)                          Accounts owing from any Person that is located in a state that requires the filing of a business activity report or similar report and with respect to which the U.S. Borrower or other U.S. Domiciled Loan Party, as applicable, has not actually filed such a report.

U.S. Eligible Pledged Cash:  cash or Cash Equivalents subject to a legal, valid and enforceable first priority Lien in favor of the Agent on behalf of the U.S. Facility Secured Parties and held in a special account established at Bank of America and over which the Agent has dominion and control (which may be exercised during a Cash Trigger Period); provided that solely for purposes of determining compliance with the provisions of clause (h) of the definition of Permitted Acquisition, Section 10.2.3(k), Section 10.2.6(b) and (c), and Section 10.2.14, which are based, in whole or in part, on the level of U.S. Eligible Pledged Cash as of any specified date and during the forty-five (45) consecutive day period immediately preceding such specified date, U.S. Eligible Pledged Cash shall include cash held in such special account on such specified date even though all or a portion of such cash was transferred into such special account during such forty-five (45) day period.

U.S. Facility Collateral: Collateral that now or hereafter secures (or is intended to secure) any of the U.S. Facility Obligations.

U.S. Facility Guarantee: each guarantee agreement at any time executed by a U.S. Facility Guarantor in favor of the Agent guaranteeing all or any portion of the U.S. Facility Obligations.

U.S. Facility Guarantor: each U.S. Domiciled Loan Party and each other Person (if any) who guarantees payment and performance of any U.S. Facility Obligations.

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U.S. Facility Loan Party: the U.S. Borrower or a U.S. Facility Guarantor.

U.S. Facility Obligations: all Obligations of the U.S. Facility Loan Parties (including, for the avoidance of doubt, the Obligations of the U.S. Domiciled Loan Parties as guarantors of the Canadian Facility Obligations).

U.S. Facility Secured Parties: the Agent, U.S. Issuing Bank, the U.S. Lenders (including any U.S. Lender or Affiliate thereof providing any products under Hedging Agreements to any U.S. Facility Loan Party), providers of Bank Products to the U.S. Facility Loan Parties, and the Lead Arranger.

U.S. Hedging Obligations: Hedging Obligations of a U.S. Domiciled Loan Party.

U.S. Incremental Commitments: with respect to the U.S. Incremental Facility, and as to each U.S. Lender, its obligation, if any, to (a) make U.S. Revolver Loans consisting of U.S. Incremental Loans to the U.S. Borrower pursuant to Section 2.1.8(a), and (b) purchase participations in U.S. LC Obligations, in an aggregate principal amount at any one time outstanding not to exceed the amount set forth under the heading “U.S. Incremental Commitment” opposite such U.S. Lender’s name on Schedule 1.1(a) or in the Assignment and Acceptance pursuant to which such U.S. Lender becomes a party hereto, as applicable, in each case, as such amount may be adjusted from time to time in accordance with this Agreement.

U.S. Incremental Facility: the aggregation of U.S. Incremental Commitments of one or more U.S. Lenders which are made available to the U.S. Borrower and become effective on the same date pursuant to the Incremental Loan Amendment.

U.S. Incremental Loan:  as defined in Section 2.1.8(a).

U.S. Issuing Bank: each of Bank of America or an Affiliate of Bank of America, or JPMorgan Chase Bank, N.A. or an Affiliate of JPMorgan Chase Bank, N.A., in each case as an issuer of Letters of Credit under this Agreement.

U.S. LC Obligations: the sum (without duplication) of (a) all amounts owing by the U.S. Borrower for any drawings under Letters of Credit; (b) the stated amount of all outstanding Letters of Credit issued for the account of the U.S. Borrower; and (c) all fees and other amounts owing with respect to Letters of Credit issued for the account of the U.S. Borrower.

U.S. Lenders: Bank of America and each other Lender (other than Canadian Lenders) party hereto, including the Agent in its capacity as a provider of U.S. Swingline Loans.

U.S. Letter of Credit Sublimit: $250,000,000.

U.S. Letters of Credit: as defined in Section 2.2.1.

U.S. Non-Extension Notice Date: as defined in Section 2.2.1(e).

U.S. Overadvance: as defined in Section 2.1.5.

U.S. Overadvance Loan: a U.S. Base Rate Loan made to the U.S. Borrower when a U.S. Overadvance exists or is caused by the funding thereof.

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U.S. Perfection Certificate: a certificate in the form of Exhibit F-1 or any other form approved by the Agent, as the same shall be supplemented from time to time by a U.S. Perfection Certificate Supplement or otherwise.

U.S. Perfection Certificate Supplement:  a supplement to the U.S. Perfection Certificate in a form approved by the Agent.

U.S. Prime Rate: the rate of interest announced by Bank of America from time to time as its prime rate.  Such rate is set by Bank of America on the basis of various factors, including its costs and desired return, general economic conditions and other factors, and is used as a reference point for pricing some loans, which may be priced at, above or below such rate.  Any change in such rate publicly announced by Bank of America shall take effect at the opening of business on the day specified in the announcement.

U.S. Reimbursement Date: as defined in Section 2.2.2(a).

U.S. Revolver Commitment: for any U.S. Lender, its obligation to make U.S. Revolver Loans and to issue U.S. Letters of Credit, in the case of U.S. Issuing Bank, or participate in U.S. LC Obligations (excluding amounts specified in clause (c) of such definition), in the case of the other U.S. Lenders, to the U.S. Borrower up to the maximum principal amount, in each case, shown on Schedule 1.1(a), or as hereafter determined pursuant to each Assignment and Acceptance to which it is a party, as such U.S. Revolver Commitment may be adjusted from time to time in accordance with the provisions of Section 2.1.4 or 11.2. “U.S. Revolver Commitments” means the aggregate amount of such commitments of all U.S. Lenders.

U.S. Revolver Commitment Termination Date: the earliest of (a) the Facility Termination Date, (b) the date on which the Loan Party Agent terminates or reduces to zero the U.S. Revolver Commitments pursuant to Section 2.1.4, and (c) the date on which the U.S. Revolver Commitments are terminated pursuant to Section 11.2.

U.S. Revolver Exposure: on any date, an amount equal to the sum of the Dollar Equivalent of the U.S. Revolver Loans outstanding on such date plus the U.S. LC Obligations (excluding amounts specified in clause (c) of such definition) on such date.

U.S. Revolver Loan: a Revolver Loan made by a U.S. Lender to the U.S. Borrower pursuant to Section 2.1.1(a), and any U.S. Swingline Loan, which Loan shall be denominated in Dollars and shall be either a U.S. Base Rate Loan or a LIBOR Loan, in each case as selected by Loan Party Agent, and any U.S. Overadvance Loan and any Protective Advance made by the Agent as a U.S. Base Rate Revolver Loan pursuant to Section 2.1.6.

U.S. Revolver Notes: the promissory notes, if any, executed by the U.S. Borrower in favor of each U.S. Lender to evidence the U.S. Revolver Loans funded from time to time by such U.S. Lender, which shall be in the form of Exhibit A-2 to this Agreement, together with any replacement or successor notes therefor.

U.S. Secured Hedging Obligations: all U.S. Hedging Obligations owing to any U.S. Facility Secured Party and with respect to which the applicable U.S. Domiciled Loan Party and the U.S. Facility Secured Party shall have delivered (except in the case of the Agent or any Affiliate of the Agent), at or prior to the time that the Hedging Agreement relating to such obligation is entered into or, if later, at the time that such U.S. Facility Secured Party becomes a

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party to this Agreement, written notice to the Agent (which notice shall be supplemented on a monthly basis or more frequently as the Agent may reasonably request) that such a transaction has been entered into, that it constitutes a U.S. Secured Hedging Obligation entitled to the benefits of the Security Documents, and of the Hedging Termination Value with respect to such U.S. Secured Hedging Obligations as of such date.

U.S. Secured Hedging Reserves: the aggregate amount of reserves, as established by the Agent from time to time in its commercially reasonable credit judgment, to reflect the reasonably anticipated U.S. Secured Hedging Obligations then provided or outstanding.

U.S. Security Agreement: collectively, each general security agreement among any U.S. Domiciled Loan Party and the Agent, including, without limitation, that certain Security Agreement (U.S. Domiciled Loan Parties) dated as of the Closing Date, among the U.S. Borrower, the other U.S. Domiciled Loan Parties party thereto and the Agent.

U.S. Subsidiary: a Subsidiary of the U.S. Borrower that is organized under the laws of a state of the United States or the District of Columbia.

U.S. Swingline Loan: any Borrowing of U.S. Base Rate Loans made pursuant to Section 4.1.3(a).

Wage Earner Protection Act Reserve:  on any date of determination, a reserve established from time to time by the Agent in its credit judgment in such amount as the Agent determines reflects the amounts that may become due under the Wage Earner Protection Program Act (Canada) with respect to the employees of any Loan Party employed in Canada which would give rise to a Lien with priority under Applicable Law over the Lien of the Agent.

1.2                               Accounting Terms.   Under the Loan Documents (except as otherwise specified herein), all accounting terms shall be interpreted, all accounting determinations shall be made, and all financial statements shall be prepared, in accordance with GAAP applied on a basis consistent with the most recent audited financial statements of the Loan Parties delivered to Agent before the Closing Date, except for any change required or permitted by GAAP if the Loan Parties’ certified public accountants concur in such change, the change is disclosed to Agent, and Section 10.2.11 and the definition of Consolidated Fixed Charge Coverage Ratio (and the defined terms referenced therein) are amended in a manner satisfactory to Required Lenders to take into account the effects of the change.

1.3                               Uniform Commercial Code/PPSA.   As used herein, the following terms are defined in accordance with the UCC in effect in the State of New York from time to time:  “Account,” “Chattel Paper,” “Commercial Tort Claim,” “Equipment,” “Goods,” “Instrument,” “Inventory,” “Investment Property,” “Letter-of-Credit Right” and “Supporting Obligation” and, as such terms relate to any such Property of any Canadian Domiciled Loan Party, such terms shall refer to such Property as defined in the PPSA.  In addition, other terms relating to Collateral used and not otherwise defined herein that are defined in the UCC and/or the PPSA shall have the meanings set forth in the UCC and/or the PPSA, as applicable.

1.4                               Certain Matters of Construction.   The terms “herein,” “hereof,” “hereunder” and other words of similar import refer to this Agreement as a whole and not to any particular section, paragraph or subdivision.  Any pronoun used shall be deemed to cover all genders.  In the computation of periods of time from a specified date to a later specified date, “from” means

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“from and including,” and “to” and “until” each mean “to but excluding.”  The terms “including” and “include” shall mean “including, without limitation” and, for purposes of each Loan Document, the parties agree that the rule of ejusdem generis shall not be applicable to limit any provision.  Section titles appear as a matter of convenience only and shall not affect the interpretation of any Loan Document.  All references to (a) laws or statutes include all related rules, regulations, interpretations, amendments and successor provisions; (b) any reference to any Loan Document shall be deemed to include any amendments, waivers and other modifications, extensions or renewals of such Loan Document; (c) section means, unless the context otherwise requires, a section of this Agreement; (d) any exhibits or schedules mean, unless the context otherwise requires, exhibits and schedules attached hereto, which are hereby incorporated by reference; (e) any Person includes successors and assigns; (f) time of day means time of day at the Agent’s notice address under Section 14.3.1; or (g) discretion of the Agent, an Issuing Bank or any Lender means the sole and absolute discretion of such Person exercised in a manner consistent with its duties of good faith and fair dealing.  Except as expressly otherwise provided herein, all calculations of Net Amount, fundings of Loans, issuances of Letters of Credit and payments of Obligations shall be in Dollars and, unless the context otherwise requires, all determinations (including calculations of a Borrowing Base and financial covenants) made from time to time under the Loan Documents shall be made in light of the circumstances existing at such time.  Borrowing Base calculations shall be consistent with historical methods of valuation and calculation, and otherwise satisfactory to the Agent (and not necessarily calculated in accordance with GAAP).  The Loan Parties shall have the burden of establishing any alleged negligence, misconduct or lack of good faith by the Agent, an Issuing Bank or any Lender under any Loan Documents.  No provision of any Loan Documents shall be construed against any party by reason of such party having, or being deemed to have, drafted the provision.  Whenever the phrase “to the best of a Loan Parties’ knowledge” or words of similar import are used in any Loan Documents, it means actual knowledge of a Responsible Officer of a Loan Party.  Whenever any payment, certificate, notice or other delivery shall be stated to be due on a day other than a Business Day, the due date for such payment or delivery shall be extended to the next succeeding Business Day, and such extension of time shall in such case be included in the computation of interest or fees, as the case may be; provided, however, that if such extension would cause payment of interest on or principal of any LIBOR Loan to be made in the next calendar month, such payment shall be made on the immediately preceding Business Day.

1.5                               Interpretation (Quebec).  For purposes of any Collateral located in the Province of Quebec or charged by any deed of hypothec (or any other Loan Document) and for all other purposes pursuant to which the interpretation or construction of a Loan Document may be subject to the laws of the Province of Quebec or a court or tribunal exercising jurisdiction in the Province of Québec, (a) “personal property” shall be deemed to include “movable property”, (b) “real property” shall be deemed to include “immovable property”, (c) “tangible property” shall be deemed to include “corporeal property”, (d) “intangible property” shall be deemed to include “incorporeal property”, (e) “security interest” and “mortgage” shall be deemed to include a “hypothec”, (f) all references to filing, registering or recording under the UCC or the PPSA shall be deemed to include publication under the Civil Code of Québec, (g) all references to “perfection” of or “perfected” Liens shall be deemed to include a reference to the “opposability” of such Liens to third parties, (h) any “right of offset”, “right of setoff” or similar expression shall be deemed to include a “right of compensation”, (i) “goods” shall be deemed to include “corporeal movable property” other than chattel paper, documents of title, instruments, money and securities, and (j) an “agent” shall be deemed to include a “mandatary”.

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SECTION 2.  CREDIT FACILITIES

2.1                               Commitment.

2.1.1  Revolver Loans.

(a)                                 U.S. Revolver Loans to U.S. Borrower.  Each U.S. Lender agrees, severally and not jointly with the other U.S. Lenders, upon the terms and subject to the conditions set forth herein, to make U.S. Revolver Loans to the U.S. Borrower on any Business Day during the period from the Closing Date to the U.S. Revolver Commitment Termination Date, not to exceed in aggregate principal amount outstanding at any time such U.S. Lender’s U.S. Revolver Commitment at such time, which U.S. Revolver Loans may be repaid and reborrowed in accordance with the provisions of this Agreement; provided, however, that such U.S. Lenders shall have no obligation to the U.S. Borrower whatsoever to honor any request for a U.S. Revolver Loan on or after the U.S. Revolver Commitment Termination Date or if the amount of the proposed U.S. Revolver Loan exceeds U.S. Availability on the proposed funding date for such U.S. Revolver Loan.  Each Borrowing of U.S. Revolver Loans shall be funded by the U.S. Lenders on a Pro Rata basis.  The U.S. Revolver Loans shall bear interest as set forth in Section 3.1.  Each U.S. Revolver Loan shall, at the option of the Loan Party Agent, be made or continued as, or converted into, part of one or more Borrowings that, unless specifically provided herein, shall consist entirely of U.S. Base Rate Loans or LIBOR Loans.  The U.S. Revolver Loans shall be repaid in accordance with the terms of this Agreement and shall be secured by all of the U.S. Facility Collateral.  Each U.S. Revolver Loan shall be funded and repaid in Dollars.

(b)                                 Canadian Revolver Loans to Canadian Borrower.  Each Canadian Lender agrees, severally and not jointly with the other Canadian Lenders, upon the terms and subject to the conditions set forth herein, to make Canadian Revolver Loans to the Canadian Borrower on any Business Day during the period from the Closing Date to the Canadian Revolver Commitment Termination Date, not to exceed in aggregate principal amount outstanding at any time such Canadian Lender’s Canadian Revolver Commitment at such time, which Canadian Revolver Loans may be repaid and reborrowed in accordance with the provisions of this Agreement; provided, however, that the Canadian Lenders shall have no obligation to the Canadian Borrower whatsoever to honor any request for a Canadian Revolver Loan on or after the Canadian Revolver Commitment Termination Date or if the amount of the proposed Canadian Revolver Loan exceeds the Canadian Availability on the proposed funding date for such Canadian Revolver Loan.  Each Borrowing of Canadian Revolver Loans shall be funded by the Canadian Lenders on a Pro Rata basis.  The Canadian Revolver Loans shall bear interest as set forth in Section 3.1.  Each Canadian Revolver Loan shall, at the option of the Loan Party Agent, be made or continued as, or converted into, part of one or more Borrowings that, unless specifically provided herein, shall consist entirely of Canadian Prime Rate Loans or Canadian BA Rate Loans if denominated in Canadian Dollars, or Canadian Base Rate Loans or LIBOR Loans if denominated in Dollars.  The Canadian Revolver Loans shall be repaid in accordance with the terms of this Agreement and shall be secured by all of the Canadian Facility Collateral.  Each Canadian Revolver Loan shall be funded in Canadian Dollars or, at the option of the Canadian Borrower, Dollars and repaid in the same currency as the underlying Canadian Revolver Loan was made.

(c)                                  Cap on Total Revolver Exposure.  Notwithstanding anything to the contrary contained in this Section 2.1.1, in no event shall any Borrower be entitled to receive a Revolver

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Loan if at the time of the proposed funding of such Loan (and after giving effect thereto and all pending requests for Loans), the Total Revolver Exposure exceeds (or would exceed) the lesser of the Maximum Facility Amount and the Commitments.

2.1.2  Revolver Notes.  The Revolver Loans made by each Lender and interest accruing thereon shall be evidenced by the records of the Agent and such Lender.  At the request of any Lender, the Borrower to which such Lender has extended Commitments shall deliver a Revolver Note to such Lender in the amount of such Lender’s aggregate U.S. Revolver Commitment or Canadian Revolver Commitment, as applicable.

2.1.3  Use of Proceeds.  The proceeds of Revolver Loans shall be used by the Borrowers solely (a) to fund Permitted Acquisitions, (b) to fund certain fees and expenses associated with the credit facility provided by the Lenders pursuant to this Agreement and the other Loan Documents, (c) to issue standby or commercial Letters of Credit, and (d) to finance ongoing working capital needs and other lawful corporate purposes of the U.S. Borrower and its Subsidiaries.

2.1.4  Reduction or Termination of Commitments.

(a)                                 The Canadian Revolver Commitments shall terminate on the Canadian Revolver Commitment Termination Date and the U.S. Revolver Commitments shall terminate on the U.S. Revolver Commitment Termination Date, in each case unless sooner terminated in accordance with this Agreement.  Upon at least five (5) Business Days prior written notice to the Agent from the Loan Party Agent, (i) the U.S. Borrower may, at its option, terminate the U.S. Revolver Commitments and this credit facility and/or (ii) the Canadian Borrower may, at its option, terminate the Canadian Revolver Commitment, in each case without premium or penalty (other than funding losses payable pursuant to Section 3.9).  If the U.S. Borrower elects to reduce to zero or terminate the U.S. Revolver Commitments pursuant to the previous sentence, the Canadian Revolver Commitments shall automatically terminate concurrently with the termination of the U.S. Revolver Commitments.  Any notice of termination given by the Borrowers pursuant to this Section 2.1.4 shall be irrevocable; provided, however, that notice may be contingent on the occurrence of a refinancing or the consummation of a sale, transfer, lease or other disposition of assets and may be revoked or the termination date deferred if the refinancing or sale, transfer, lease or other disposition of assets does not occur.  On the Canadian Revolver Commitment Termination Date, the Canadian Facility Loan Parties shall make Full Payment of all Canadian Facility Obligations.  On the U.S. Revolver Commitment Termination Date, the U.S. Facility Loan Parties shall make Full Payment of all U.S. Facility Obligations.

(b)                 So long as (i) no Default or Event of Default then exists or would result therefrom, (ii) no U.S. Overadvance or Canadian Overadvance then exists or would result therefrom, and (iii) after giving effect thereto, Excess Availability would exceed fifteen percent (15%) of the Line Cap, the Loan Party Agent may permanently and irrevocably reduce the Maximum Facility Amount by giving the Agent at least five (5) Business Days’ prior irrevocable written notice thereof from a Responsible Officer of the Loan Party Agent, which notice shall (1) specify the date (which shall be a Business Day) and amount of such reduction (which shall be in a minimum amount of $10,000,000 and increments of $1,000,000 in excess thereof), (2) the allocation of such reduction to, and the corresponding reductions of, each of the Maximum Canadian Facility Amount and/or the Maximum U.S. Facility Amount (and the respective Canadian Revolver Commitments and the U.S. Revolver Commitments in respect thereof, each

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of which shall be allocated to the Lenders among the Borrowers on a Pro Rata basis at the time of such reduction) and (3) certify the satisfaction of the foregoing conditions precedent (including calculations thereof in reasonable detail) both as of the date of such certificate and as of the effective date of any such proposed reduction; provided, however, that notice may be contingent on the occurrence of a refinancing or incurrence of Debt permitted under Section 10.2.2 or consummation of a sale, transfer, lease or other disposition of assets and may be revoked or the reduction date deferred if the refinancing, incurrence or sale, transfer, lease or other disposition of assets does not occur.  Without limiting the foregoing, (A) each reduction in the Maximum Canadian Facility Amount and the Canadian Revolver Commitments shall in no event exceed Canadian Availability and be in a minimum amount of $10,000,000 and increments of $1,000,000 in excess thereof, and (B) each reduction in the Maximum U.S. Facility Amount and the U.S. Revolver Commitments shall in no event exceed U.S. Availability and be in a minimum amount of $10,000,000 and increments of $1,000,000 in excess thereof.

2.1.5  Overadvances.

(a)                                 If at any time (a) the Canadian Revolver Exposure exceeds the Canadian Borrowing Base (a “Canadian Overadvance”) or (b) the U.S. Revolver Exposure exceeds the U.S. Borrowing Base (a “U.S. Overadvance”), the excess amount shall, subject to Section 5.2,  be immediately due and payable by the Canadian Borrower or the U.S. Borrower, as applicable on demand by the Agent.  Unless its authority has been revoked in writing by the Required Lenders, the Agent may require the Applicable Lenders to honor requests for Overadvance Loans and to forbear from requiring the applicable Borrower(s) to cure an Overadvance, (a) when no other Event of Default is known to the Agent, as long as (i) the Overadvance does not continue for more than thirty (30) consecutive days (and no Overadvance may exist for at least five (5) consecutive days thereafter before further Overadvance Loans are required), and (ii) the Overadvance is not known by the Agent to exceed five percent (5%) of the Canadian Borrowing Base with respect to the Canadian Borrower, or five percent (5%) of the U.S. Borrowing Base with respect to the U.S. Borrower; and (b) regardless of whether an Event of Default exists, if the Agent discovers an Overadvance not previously known by it to exist, as long as from the date of such discovery the Overadvance (i) is not increased by more than two and one-half of one percent (2.5%) of the Canadian Borrowing Base with respect to the Canadian Borrower, or two and one-half of one percent (2.5%) of the U.S. Borrowing Base with respect to the U.S. Borrower, and (ii) does not continue for more than thirty (30) consecutive days.  In no event shall Overadvance Loans be required that would cause (i) the Canadian Revolver Exposure to exceed the aggregate Canadian Revolver Commitments or (ii) the U.S. Revolver Exposure to exceed the aggregate U.S. Revolver Commitments.  All Canadian Overadvance Loans shall constitute Canadian Facility Obligations secured by the Canadian Facility Collateral and shall be entitled to all benefits of the Loan Documents.  All U.S. Overadvance Loans shall constitute U.S. Facility Obligations secured by the U.S. Facility Collateral and shall be entitled to all benefits of the Loan Documents.  Any funding of an Overadvance Loan or sufferance of an Overadvance shall not constitute a waiver by the Agent or the Lenders of the Event of Default caused thereby.  In no event shall any Borrower or other Loan Party be deemed a beneficiary of this Section nor authorized to enforce any of its terms.

2.1.6  Protective Advances.  The Agent shall be authorized, in its discretion, at any time that any conditions in Section 6 are not satisfied, to make U.S. Base Rate Loans and Canadian Prime Rate Loans, as applicable (each a “Protective Advance”) (a) up to an aggregate amount of ten percent (10%) of the Canadian Borrowing Base with respect to the Canadian

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Borrower, or ten percent (10%) of the U.S. Borrowing Base with respect to the U.S. Borrower, outstanding at any time, if the Agent deems such Loans necessary or desirable to preserve or protect Collateral, or to enhance the collectability or repayment of Obligations, including to meet payroll; or (b) to pay any other amounts chargeable to the Loan Parties under any Loan Documents, including interest, costs, fees and expenses.  In no event shall Protective Advances be required that would cause (x) the outstanding U.S. Revolver Loans and U.S. LC Obligations to exceed the aggregate U.S. Commitments or (y) the outstanding Canadian Revolver Loans and Canadian LC Obligations to exceed the aggregate Canadian Commitments.  Each Applicable Lender shall participate in each Protective Advance on a Pro Rata basis.  Required Facility Lenders may at any time revoke the Agent’s authority to make further Protective Advances to the applicable Borrower by written notice to the Agent.  Absent such revocation, the Agent’s determination that funding of a Protective Advance is appropriate shall be conclusive.  All Protective Advances made by the Agent with respect to U.S. Facility Loan Parties shall be U.S. Facility Obligations, secured by the U.S. Facility Collateral and shall be treated for all purposes as Extraordinary Expenses and all Protective Advances made by the Agent with respect to Canadian Facility Loan Parties shall be Canadian Facility Obligations, secured by the Canadian Facility Collateral and shall be treated for all purposes as Extraordinary Expenses.  Notwithstanding the foregoing, in no event shall the aggregate amount of the Protective Advances under this Section 2.1.6 and Overadvances under Section 2.1.5 exceed ten percent (10%) of the Line Cap at any time without the prior written consent of all Lenders.

2.1.7  Adjustment of Revolver Commitments.

(a)                                 The Borrowers may, by written notice to the Agent, request that the Agent and the Lenders increase or decrease the Maximum Canadian Facility Amount (a “Canadian Revolver Commitment Adjustment”), which request shall be granted provided that each of the following conditions are satisfied:  (i) only one (1) Canadian Revolver Commitment Adjustment may be made in any Fiscal Year (such adjustment to be made within thirty (30) days of the delivery of the Compliance Certificate contemplated by Section 10.1.1(b) for the most recently ended Fiscal Quarter and a Borrowing Base Certificate contemplated by Section 8.1 for the most recently ended month), (ii) the written request for a Canadian Revolver Commitment Adjustment must be received by the Agent at least three (3) Business Days prior to the requested date (which shall be a Business Day) of the effectiveness of such Canadian Revolver Commitment Adjustment (such date of effectiveness, the “Adjustment Date”), (iii) no Default or Event of Default shall have occurred and be continuing as of the date of such request or both immediately before and after giving effect thereto as of the Adjustment Date, (iv) any increase in the Maximum Canadian Facility Amount shall result in a Dollar-for-Dollar decrease in the Maximum U.S. Facility Amount, and vice-versa for any decrease in the Maximum Canadian Facility Amount pursuant to this Section, (v) in no event shall the Canadian Revolver Commitment plus the U.S. Revolver Commitment (in each case after giving effect to such proposed Canadian Revolver Commitment Adjustment) exceed the Maximum Facility Amount, (vi) in no event shall the Canadian Revolver Commitment (after giving effect to such proposed Canadian Revolver Commitment Adjustment) exceed $125,000,000, (vii) the Maximum Canadian Facility Amount shall at no time exceed $125,000,000, (viii) no Canadian Revolver Commitment Adjustment shall be permitted if, after giving effect thereto, an Overadvance would exist, (ix) U.S. Availability after giving effect thereto shall equal or exceed twenty percent (20%) of the U.S. Borrowing Base, and (x) the Agent shall have received a certificate of the Loan Party Agent dated as of the Adjustment Date certifying the satisfaction of all such conditions (including calculations thereof in reasonable detail) and otherwise in form and substance reasonably satisfactory to the Agent.  Any such

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Canadian Revolver Commitment Adjustment shall be in an amount equal to $5,000,000 or a multiple of $1,000,000 in excess thereof and shall concurrently increase or reduce, as applicable, (1) the aggregate U.S. Revolver Commitments then in effect Pro Rata among the U.S. Lenders and (2) the aggregate Canadian Revolver Commitments then in effect Pro Rata among the Canadian Lenders.  After giving effect to any Canadian Revolver Commitment Adjustment, the Canadian Revolver Commitment of each Canadian Lender (and the percentage of each Canadian Revolving Loan that each Participant must purchase a Canadian Revolving Loan Participation in) shall be equal to such Canadian Lender’s (or Participant’s) Pro Rata Share of the amount of the Maximum Canadian Facility Amount.

(b)                                 The Agent shall promptly inform the Lenders of any request for a Canadian Revolver Commitment Adjustment made by the Borrowers.  If the conditions set forth in clause (a) above are not satisfied on the applicable Adjustment Date (or, to the extent such conditions relate to an earlier date, such earlier date), the Agent shall notify the Loan Party Agent in writing that the requested Canadian Revolver Commitment Adjustment will not be effectuated; provided, however, that the Agent shall in all cases be entitled to rely (without liability) on the certificate delivered by the Loan Party Agent pursuant to clause (a)(x) immediately above in making its determination as to the satisfaction of such conditions.  On each Adjustment Date, the Agent shall notify the Lenders and the Loan Party Agent, on or before 3:00 p.m. (Boston time), by telecopier, e-mail or telex, of the occurrence of the Canadian Revolver Commitment Adjustment to be effected on such Adjustment Date, the amount of Revolving Loans held by each Lender as a result thereof, and the amount of the U.S. Revolver Commitment of each U.S. Lender and the amount of the Canadian Revolver Commitment of each Canadian Lender (and the percentage of each Canadian Revolving Loan that each Participant must purchase a participation interest in) as a result thereof.

2.1.8  Incremental Commitments.

(a)                                 Except as set forth below, so long as no Default or Event of Default has occurred and is continuing, at any one (1) time prior to the Facility Termination Date, the U.S. Borrower may request, pursuant to the procedure set forth in this Section 2.1.8(a), the addition of the U.S. Incremental Facility, which shall be added to and increase the original aggregate amount of the U.S. Revolver Commitments and pursuant to which the U.S. Borrower may request incremental U.S. Revolver Loans (each, a “U.S. Incremental Loan”) pursuant to Section 2.1.1(a); provided, however, that the sum of all U.S. Incremental Commitments and all Canadian Incremental Commitments shall not exceed the Maximum Incremental Amount.  The U.S. Borrower shall give the Agent not less than thirty (30) days prior written notice of its request for the U.S. Incremental Facility, unless a shorter period of notice is agreed to by the Agent.  The U.S. Incremental Facility shall:

(i)                                     have such fees as may be agreed by the U.S. Borrower, the Agent and the Lender(s) providing such U.S. Incremental Loans pursuant to the provisions of this Section 2.1.8(a); and

(ii)                                  except as specifically provided in this Section 2.1.8(a), otherwise have all of the same terms and conditions as the U.S. Revolver Loans.

In addition, unless otherwise specifically provided in this Agreement, all references in the Loan Documents to U.S. Revolver Loans shall be deemed, as the context requires, to include

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references to U.S. Incremental Loans made pursuant to this Agreement.  The U.S. Borrower shall have no obligation to offer to existing Lenders the opportunity to subscribe to the U.S. Incremental Facility, and no existing Lender will have an obligation to make a U.S. Incremental Loan unless and until it expressly commits to do so in writing.  The U.S. Borrower shall have the right to cause the U.S. Incremental Loans to be made by a new Lender identified by the U.S. Borrower that is an Eligible Assignee and is reasonably acceptable to the Agent, provided that any such new Lender shall be required to comply with Section 13.3.

(b)                                 Except as set forth below, so long as no Default or Event of Default has occurred and is continuing, at any one (1) time prior to the Facility Termination Date, the Canadian Borrower may request, pursuant to the procedure set forth in this Section 2.1.8(b), the addition of the Canadian Incremental Facility, which shall be added to and increase the original aggregate amount of the Canadian Revolver Commitments and pursuant to which the Canadian Borrower may request incremental Canadian Revolver Loans (each, a “Canadian Incremental Loan”) pursuant to Section 2.1.1(b); provided, however, that the sum of all U.S. Incremental Commitments and all Canadian Incremental Commitments shall not exceed the Maximum Incremental Amount.  The Canadian Borrower shall give the Agent not less than thirty (30) days prior written notice of its request for the Canadian Incremental Facility, unless a shorter period of notice is agreed to by the Agent.  The Canadian Incremental Facility shall:

(i)                                     have such fees as may be agreed by the Canadian Borrower, the Agent and the Lender(s) providing such Canadian Incremental Loans pursuant to the provisions of this Section 2.1.8(b); and

(ii)                                  except as specifically provided in this Section 2.1.8(b), otherwise have all of the same terms and conditions as the Canadian Revolver Loans.

In addition, unless otherwise specifically provided in this Agreement, all references in the Loan Documents to Canadian Revolver Loans shall be deemed, as the context requires, to include references to Canadian Incremental Loans made pursuant to this Agreement.  The Canadian Borrower shall have no obligation to offer to existing Lenders the opportunity to subscribe to the Canadian Incremental Facility, and no existing Lender will have an obligation to make a Canadian Incremental Loan unless and until it expressly commits to do so in writing.  The Canadian Borrower shall have the right to cause the Canadian Incremental Loans to be made by a new Lender identified by the Canadian Borrower that is an Eligible Assignee and is reasonably acceptable to the Agent, provided that any such new Lender shall be required to comply with Section 13.3.

(c)                                  Incremental Commitments in respect of Incremental Loans shall become Commitments under this Agreement pursuant to (i) an amendment (each, an “Incremental Loan Amendment”) to this Agreement executed by the Borrowers, each Lender or other financial institution approved by the Agent (which approval shall not be unreasonably withheld) agreeing to provide such Incremental Commitment (and no other Lender shall be required to execute such amendment) and the Agent, and (ii) any amendments to the other Loan Documents (executed by the relevant Loan Party and the Agent only) as the Agent shall reasonably deem appropriate to effect such purpose.  Notwithstanding anything to the contrary contained herein, the effectiveness of such Incremental Loan Amendment shall be subject to the satisfaction of the conditions set forth in Sections 6.2(a), (b) and (c), unless waived by the Agent.

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2.2                               U.S. Letter of Credit Facility.

2.2.1  Issuance of Letters of Credit.  U.S. Issuing Bank agrees to issue Letters of Credit for the account of the U.S. Borrower (“U.S. Letters of Credit”) from time to time until fifteen (15) days prior to the Facility Termination Date (or until the U.S. Revolver Commitment Termination Date, if earlier), on the terms set forth herein, including the following:

(a)                                 The U.S. Borrower acknowledges that U.S. Issuing Bank’s willingness to issue any U.S. Letter of Credit is conditioned upon U.S.  Issuing Bank’s receipt of an LC Application with respect to the requested U.S. Letter of Credit, as well as such other instruments and agreements as U.S. Issuing Bank may customarily require for issuance of a letter of credit of similar type and amount.  U.S. Issuing Bank shall have no obligation to issue any U.S. Letter of Credit unless (i) U.S. Issuing Bank receives an LC Request and LC Application at least three (3) Business Days prior to the requested date of issuance; (ii) each LC Condition is satisfied; and (iii) if a Defaulting Lender that is a U.S. Lender exists, such Defaulting Lender or the U.S. Borrower have entered into arrangements satisfactory to the Agent and U.S. Issuing Bank to eliminate any funding risk associated with such Defaulting Lender (it being understood that Cash Collateralization of a Defaulting Lender’s Pro Rata share of the requested U.S. Letter of Credit is satisfactory to the Agent and U.S. Issuing Bank).  If U.S. Issuing Bank receives written notice from a U.S. Lender at least five (5) Business Days before the requested date of issuance of a U.S. Letter of Credit that any LC Condition has not been satisfied, U.S. Issuing Bank shall have no obligation to issue the requested U.S. Letter of Credit (or any other) until such notice is withdrawn in writing by that Lender or until the Required Facility Lenders have waived such condition in accordance with this Agreement.  Prior to receipt of any such notice, U.S. Issuing Bank shall not be deemed to have knowledge of any failure of LC Conditions.

(b)                                 Letters of Credit may be requested by the U.S. Borrower only (i) to support obligations of a U.S. Domiciled Loan Party incurred in the Ordinary Course of Business; or (ii) for other purposes as the Agent may approve from time to time in writing.  The renewal or extension of any U.S. Letter of Credit shall be treated as the issuance of a new U.S. Letter of Credit, except that delivery of a new LC Application may be required at the discretion of U.S. Issuing Bank.

(c)                                  The U.S. Borrower assumes all risks of the acts, omissions or misuses by the beneficiary of any U.S. Letter of Credit.  In connection with issuance of any U.S. Letter of Credit, none of the Agent, U.S. Issuing Bank or any U.S. Lender shall be responsible for the existence, character, quality, quantity, condition, packing, value or delivery of any goods purported to be represented by any Documents; any differences or variation in the character, quality, quantity, condition, packing, value or delivery of any goods from that expressed in any Documents; the form, validity, sufficiency, accuracy, genuineness or legal effect of any Documents or of any endorsements thereon; the time, place, manner or order in which shipment of goods is made; partial or incomplete shipment of, or failure to ship, any goods referred to in a U.S. Letter of Credit or Documents; any deviation from instructions, delay, default or fraud by any shipper or other Person in connection with any goods, shipment or delivery; any breach of contract between a shipper or vendor and the U.S. Borrower; errors, omissions, interruptions or delays in transmission or delivery of any messages, by mail, cable, telegraph, telex, telecopy, e-mail, telephone or otherwise; errors in interpretation of technical terms; the misapplication by a beneficiary of any U.S. Letter of Credit or the proceeds thereof; or any consequences arising from causes beyond the control of U.S. Issuing Bank, the Agent or any U.S. Lender, including

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any act or omission of a Governmental Authority.  The rights and remedies of U.S. Issuing Bank under the Loan Documents shall be cumulative.  U.S. Issuing Bank shall be fully subrogated to the rights and remedies of each beneficiary whose claims against the U.S. Borrower are discharged with proceeds of any U.S. Letter of Credit issued for the account of the U.S. Borrower.

(d)                                 In connection with its administration of and enforcement of rights or remedies under any Letters of Credit or LC Documents, U.S. Issuing Bank shall be entitled to act, and shall be fully protected in acting, upon any certification, documentation or communication in whatever form believed by U.S. Issuing Bank, in good faith, to be genuine and correct and to have been signed, sent or made by a proper Person.  U.S. Issuing Bank may consult with and employ legal counsel, accountants and other experts to advise it concerning its obligations, rights and remedies, and shall be entitled to act upon, and shall be fully protected in any action taken in good faith reliance upon, any advice given by such experts.  U.S. Issuing Bank may employ agents and attorneys-in-fact in connection with any matter relating to Letters of Credit or LC Documents, and shall not be liable for the negligence or misconduct of agents and attorneys-in-fact selected with reasonable care.

(e)                                  If the U.S. Borrower so requests in any applicable LC Application, U.S. Issuing Bank may, in its discretion, agree to issue a Letter of Credit that has automatic extension provisions (each, a “U.S. Auto-Extension Letter of Credit”); provided that any such U.S. Auto-Extension Letter of Credit must permit U.S. Issuing Bank to prevent any such extension at least once in each twelve-month period (commencing with the date of issuance of such Letter of Credit) by giving prior notice to the beneficiary thereof not later than a day (the “U.S. Non-Extension Notice Date”) in each such twelve-month period to be agreed upon at the time such Letter of Credit is issued.  Unless otherwise directed by U.S. Issuing Bank, the U.S. Borrower shall not be required to make a specific request to U.S. Issuing Bank for any such extension.  Once a U.S. Auto-Extension Letter of Credit has been issued, the U.S. Lenders shall be deemed to have authorized (but may not require), U.S. Issuing Bank to permit the extension of such Letter of Credit at any time to an expiry date at least fifteen (15) Business Days prior to the Facility Termination Date; provided, however, that U.S. Issuing Bank shall not permit any such extension if (A) U.S. Issuing Bank has determined that it would not be permitted, or would have no obligation at such time to issue such Letter of Credit in its revised form (as extended) under the terms hereof, or (B) it has received notice (which may be by telephone or in writing) on or before the day that is seven (7) Business Days before the U.S. Non-Extension Notice Date (1) from the Agent that the Required Lenders have elected not to permit such extension or (2) from the Agent, any Lender or the U.S. Borrower that one or more of the applicable conditions specified in Section 6.2 is not then satisfied, and in each such case directing U.S. Issuing Bank not to permit such extension.

2.2.2  U.S. Letters of Credit; Reimbursement and Participations.

(a)                                 If U.S. Issuing Bank honors any request for payment under a U.S. Letter of Credit, the U.S. Borrower shall pay to U.S. Issuing Bank, on the same day (“U.S. Reimbursement Date”), the amount paid by U.S. Issuing Bank under such U.S. Letter of Credit, together with interest at the interest rate for U.S. Base Rate Loans from the U.S. Reimbursement Date until payment by the U.S. Borrower.  The obligation of the U.S. Borrower to reimburse U.S. Issuing Bank for any payment made under a U.S. Letter of Credit shall be absolute, unconditional and irrevocable, and shall be paid without regard to any lack of validity or

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enforceability of any such U.S. Letter of Credit or the existence of any claim, setoff, defense or other right that the U.S. Borrower or any other U.S. Domiciled Loan Parties may have at any time against the beneficiary.  Whether or not the Loan Party Agent submits a Notice of Borrowing, the U.S. Borrower shall be deemed to have requested a Borrowing of U.S. Base Rate Loans in an amount necessary to pay all amounts due U.S. Issuing Bank on any U.S. Reimbursement Date and each U.S. Lender agrees to fund its Pro Rata share of such Borrowing whether or not the U.S. Revolver Commitments have terminated, any U.S. Overadvance exists or is created thereby, or the conditions in Section 6 are satisfied.

(b)                                 Upon issuance of a U.S. Letter of Credit, or in the case of the applicable Existing Letters of Credit listed on Schedule 1.1(b), on the Closing Date, each U.S. Lender shall be deemed to have irrevocably and unconditionally purchased from U.S. Issuing Bank, without recourse or warranty, an undivided Pro Rata interest and participation in all U.S. LC Obligations (excluding amounts specified in clause (c) of such definition) relating to such U.S. Letter of Credit.  If U.S. Issuing Bank makes any payment under a U.S. Letter of Credit for the account of the U.S. Borrower and the U.S. Borrower does not reimburse such payment on the U.S. Reimbursement Date, the Agent shall promptly notify the U.S. Lenders and each U.S. Lender shall promptly (within one (1) Business Day) and unconditionally pay to the Agent, for the benefit of U.S. Issuing Bank, such U.S. Lender’s Pro Rata share of such payment.  Upon request by a U.S. Lender, U.S. Issuing Bank shall furnish copies of any Letters of Credit and LC Documents in its possession at such time.

(c)                                  The obligation of each U.S. Lender to make payments to the Agent for the account of U.S. Issuing Bank in connection with U.S. Issuing Bank’s payment under a U.S. Letter of Credit shall be absolute, unconditional and irrevocable, not subject to any counterclaim, setoff, qualification or exception whatsoever, and shall be made in accordance with this Agreement under all circumstances, irrespective of any lack of validity or unenforceability of any Loan Documents; any draft, certificate or other document presented under a U.S. Letter of Credit having been determined to be forged, fraudulent, invalid or insufficient in any respect or any statement therein being untrue or inaccurate in any respect; or the existence of any setoff or defense that any Loan Party may have with respect to any Obligations.  U.S. Issuing Bank does not assume any responsibility for any failure or delay in performance or any breach by the U.S. Borrower or any other Person of any obligations under any LC Documents.  U.S. Issuing Bank does not make to U.S. Lenders any express or implied warranty, representation or guarantee with respect to the U.S. Facility Collateral, LC Documents or any U.S. Facility Loan Party.  U.S. Issuing Bank shall not be responsible to any U.S. Lender for any recitals, statements, information, representations or warranties contained in, or for the execution, validity, genuineness, effectiveness or enforceability of any LC Documents; the validity, genuineness, enforceability, collectability, value or sufficiency of any U.S. Facility Collateral or the perfection of any Lien therein; or the assets, liabilities, financial condition, results of operations, business, creditworthiness or legal status of any U.S. Facility Loan Party.

(d)                                 No Issuing Bank Indemnitee shall be liable to any Loan Party or other Person for any action taken or omitted to be taken in connection with any U.S. Letter of Credit or LC Documents except as a result of its actual gross negligence or willful misconduct, as determined by a final, non-appealable judgment of a court of competent jurisdiction.  U.S. Issuing Bank may refrain from taking any action with respect to a U.S. Letter of Credit until it receives written instructions from the applicable Required Facility Lenders.

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2.2.3  Cash Collateral.  If any U.S. LC Obligations, whether or not then due or payable, shall for any reason be outstanding at any time (a) that an Event of Default exists, (b) that a U.S. Overadvance exists, (c) after the U.S. Revolver Commitment Termination Date, or (d) within twenty (20) Business Days prior to the Facility Termination Date, then the U.S. Borrower shall, at U.S. Issuing Bank’s or the Agent’s request, Cash Collateralize the stated amount of all outstanding Letters of Credit issued for the account of the U.S. Borrower and pay to U.S. Issuing Bank the amount of all other U.S. LC Obligations.  The U.S. Borrower shall, on demand by U.S. Issuing Bank or the Agent from time to time, Cash Collateralize the U.S. LC Obligations of any Defaulting Lender that is a U.S. Lender.  If the U.S. Borrower fails to provide any Cash Collateral as required hereunder, the U.S. Lenders may (and shall upon direction of the Agent) advance, as U.S. Revolver Loans, the amount of the Cash Collateral required (whether or not the U.S. Revolver Commitments have terminated, any U.S. Overadvance exists or is created thereby or the conditions in Section 6 are satisfied).

2.3                               Canadian Letter of Credit Facility.

2.3.1  Issuance of Letters of Credit.  Canadian Issuing Bank agrees to issue Letters of Credit for the account of the Canadian Borrower (“Canadian Letters of Credit”) from time to time until fifteen (15) days prior to the Facility Termination Date (or until the Canadian Revolver Commitment Termination Date, if earlier), on the terms set forth herein, including the following:

(a)                                 The Canadian Borrower acknowledges that Canadian Issuing Bank’s willingness to issue any Canadian Letter of Credit is conditioned upon Canadian Issuing Bank’s receipt of an LC Application with respect to the requested Canadian Letter of Credit, as well as such other instruments and agreements as Canadian Issuing Bank may customarily require for issuance of a letter of credit of similar type and amount.  Canadian Issuing Bank shall have no obligation to issue any Canadian Letter of Credit unless (i) Canadian Issuing Bank receives an LC Request and LC Application at least three (3) Business Days prior to the requested date of issuance; (ii) each LC Condition is satisfied; and (iii) if a Defaulting Lender that is a Canadian Lender exists, such Defaulting Lender or the Canadian Borrower have entered into arrangements satisfactory to the Agent and Canadian Issuing Bank to eliminate any funding risk associated with such Defaulting Lender (it being understood that Cash Collateralization of a Defaulting Lender’s Pro Rata share of the requested Canadian Letter of Credit is satisfactory to the Agent and Canadian Issuing Bank).  If Canadian Issuing Bank receives written notice from a Canadian Lender at least five (5) Business Days before the requested date of issuance of a Canadian Letter of Credit that any LC Condition has not been satisfied, Canadian Issuing Bank shall have no obligation to issue the requested Canadian Letter of Credit (or any other) until such notice is withdrawn in writing by that Lender or until the Required Facility Lenders have waived such condition in accordance with this Agreement.  Prior to receipt of any such notice, Canadian Issuing Bank shall not be deemed to have knowledge of any failure of LC Conditions.

(b)                                 Letters of Credit may be requested by the Loan Party Agent for the account of Canadian Borrower only (i) to support obligations of a Canadian Domiciled Loan Party incurred in the Ordinary Course of Business; or (ii) for other purposes as the Agent may approve from time to time in writing.  The renewal or extension of any Canadian Letter of Credit shall be treated as the issuance of a new Canadian Letter of Credit, except that delivery of a new LC Application may be required at the discretion of Canadian Issuing Bank.

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(c)                                  The Canadian Borrower assumes all risks of the acts, omissions or misuses by the beneficiary of any Canadian Letter of Credit.  In connection with issuance of any Canadian Letter of Credit, none of the Agent, Canadian Issuing Bank or any Canadian Lender shall be responsible for the existence, character, quality, quantity, condition, packing, value or delivery of any goods purported to be represented by any Documents; any differences or variation in the character, quality, quantity, condition, packing, value or delivery of any goods from that expressed in any Documents; the form, validity, sufficiency, accuracy, genuineness or legal effect of any Documents or of any endorsements thereon; the time, place, manner or order in which shipment of goods is made; partial or incomplete shipment of, or failure to ship, any goods referred to in a Canadian Letter of Credit or Documents; any deviation from instructions, delay, default or fraud by any shipper or other Person in connection with any goods, shipment or delivery; any breach of contract between a shipper or vendor and the Canadian Borrower; errors, omissions, interruptions or delays in transmission or delivery of any messages, by mail, cable, telegraph, telex, telecopy, e-mail, telephone or otherwise; errors in interpretation of technical terms; the misapplication by a beneficiary of any Canadian Letter of Credit or the proceeds thereof; or any consequences arising from causes beyond the control of Canadian Issuing Bank, the Agent or any Canadian Lender, including any act or omission of a Governmental Authority.  The rights and remedies of Canadian Issuing Bank under the Loan Documents shall be cumulative.  Canadian Issuing Bank shall be fully subrogated to the rights and remedies of each beneficiary whose claims against the Canadian Borrower are discharged with proceeds of any Canadian Letter of Credit issued for the account of the Canadian Borrower.

(d)                                 In connection with its administration of and enforcement of rights or remedies under any Letters of Credit or LC Documents, Canadian Issuing Bank shall be entitled to act, and shall be fully protected in acting, upon any certification, documentation or communication in whatever form believed by Canadian Issuing Bank, in good faith, to be genuine and correct and to have been signed, sent or made by a proper Person.  Canadian Issuing Bank may consult with and employ legal counsel, accountants and other experts to advise it concerning its obligations, rights and remedies, and shall be entitled to act upon, and shall be fully protected in any action taken in good faith reliance upon, any advice given by such experts.  Canadian Issuing Bank may employ agents and attorneys-in-fact in connection with any matter relating to Letters of Credit or LC Documents, and shall not be liable for the negligence or misconduct of agents and attorneys-in-fact selected with reasonable care.

(e)                                  If the Canadian Borrower so requests in any applicable LC Application, Canadian Issuing Bank may, in its discretion, agree to issue a Letter of Credit that has automatic extension provisions (each, a “Canadian Auto-Extension Letter of Credit”); provided that any such Canadian Auto-Extension Letter of Credit must permit Canadian Issuing Bank to prevent any such extension at least once in each twelve-month period (commencing with the date of issuance of such Letter of Credit) by giving prior notice to the beneficiary thereof not later than a day (the “Canadian Non-Extension Notice Date”) in each such twelve-month period to be agreed upon at the time such Letter of Credit is issued.  Unless otherwise directed by Canadian Issuing Bank, the Canadian Borrower shall not be required to make a specific request to Canadian Issuing Bank for any such extension.  Once a Canadian Auto-Extension Letter of Credit has been issued, the Canadian Lenders shall be deemed to have authorized (but may not require) Canadian Issuing Bank to permit the extension of such Letter of Credit at any time to an expiry date at least fifteen (15) Business Days prior to the Facility Termination Date; provided, however, that Canadian Issuing Bank shall not permit any such extension if (A)

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Canadian Issuing Bank has determined that it would not be permitted, or would have no obligation at such time to issue such Letter of Credit in its revised form (as extended) under the terms hereof, or (B) it has received notice (which may be by telephone or in writing) on or before the day that is seven (7) Business Days before the Canadian Non-Extension Notice Date (1) from the Agent that the Required Lenders have elected not to permit such extension or (2) from the Agent, any Lender or the Canadian Borrower that one or more of the applicable conditions specified in Section 6.2 is not then satisfied, and in each such case directing Canadian Issuing Bank not to permit such extension.

2.3.2  Canadian Letters of Credit; Reimbursement and Participations.

(a)                                 If Canadian Issuing Bank honors any request for payment under a Canadian Letter of Credit, the Canadian Borrower shall pay to Canadian Issuing Bank, on the same day (“Canadian Reimbursement Date”), the amount paid by Canadian Issuing Bank under such Canadian Letter of Credit, together with interest at the interest rate for Canadian Base Rate Loans from the Canadian Reimbursement Date until payment by the Canadian Borrower.  The obligation of the Canadian Borrower to reimburse Canadian Issuing Bank for any payment made under a Canadian Letter of Credit shall be absolute, unconditional and irrevocable, and shall be paid without regard to any lack of validity or enforceability of any Canadian Letter of Credit or the existence of any claim, setoff, defense or other right that the Canadian Borrower or any other Canadian Domiciled Loan Parties may have at any time against the beneficiary.  Whether or not the Loan Party Agent submits a Notice of Borrowing, the Canadian Borrower shall be deemed to have requested a Borrowing of Canadian Base Rate Loans in an amount necessary to pay all amounts due Canadian Issuing Bank on any Canadian Reimbursement Date and each Canadian Lender agrees to fund its Pro Rata share of such Borrowing whether or not the Canadian Revolver Commitments have terminated, any Canadian Overadvance exists or is created thereby, or the conditions in Section 6 are satisfied.

(b)                                 Upon issuance of a Canadian Letter of Credit, or in the case of the applicable Existing Letters of Credit listed Schedule 1.1(b), on the Closing Date, each Canadian Lender shall be deemed to have irrevocably and unconditionally purchased from Canadian Issuing Bank, without recourse or warranty, an undivided Pro Rata interest and participation in all Canadian LC Obligations (excluding amounts specified in clause (c) of such definition) relating to such Canadian Letter of Credit.  If Canadian Issuing Bank makes any payment under a Canadian Letter of Credit for the account of the Canadian Borrower and the Canadian Borrower does not reimburse such payment on the Canadian Reimbursement Date, the Agent shall promptly notify the Canadian Lenders and each Canadian Lender shall promptly (within one (1) Business Day) and unconditionally pay to the Agent, for the benefit of Canadian Issuing Bank, such Canadian Lender’s Pro Rata share of such payment.  Upon request by a Canadian Lender, Canadian Issuing Bank shall furnish copies of any Letters of Credit and LC Documents in its possession at such time.

(c)                                  The obligation of each Canadian Lender to make payments to the Agent for the account of Canadian Issuing Bank in connection with Canadian Issuing Bank’s payment under a Canadian Letter of Credit shall be absolute, unconditional and irrevocable, not subject to any counterclaim, setoff, qualification or exception whatsoever, and shall be made in accordance with this Agreement under all circumstances, irrespective of any lack of validity or unenforceability of any Loan Documents; any draft, certificate or other document presented under a Canadian Letter of Credit having been determined to be forged, fraudulent, invalid or

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insufficient in any respect or any statement therein being untrue or inaccurate in any respect; or the existence of any setoff or defense that any Loan Party may have with respect to any Obligations.  Canadian Issuing Bank does not assume any responsibility for any failure or delay in performance or any breach by the Canadian Borrower or any other Person of any obligations under any LC Documents.  Canadian Issuing Bank does not make to the Canadian Lenders any express or implied warranty, representation or guarantee with respect to the Canadian Facility Collateral, LC Documents or any Canadian Facility Loan Party.  Canadian Issuing Bank shall not be responsible to any Canadian Lender for any recitals, statements, information, representations or warranties contained in, or for the execution, validity, genuineness, effectiveness or enforceability of any LC Documents; the validity, genuineness, enforceability, collectability, value or sufficiency of any Canadian Facility Collateral or the perfection of any Lien therein; or the assets, liabilities, financial condition, results of operations, business, creditworthiness or legal status of any Canadian Facility Loan Party.

(d)                                 No Issuing Bank Indemnitee shall be liable to any Loan Party or other Person for any action taken or omitted to be taken in connection with any Canadian Letter of Credit or LC Documents except as a result of its actual gross negligence or willful misconduct, as determined by a final, non-appealable judgment of a court of competent jurisdiction.  Canadian Issuing Bank may refrain from taking any action with respect to a Canadian Letter of Credit until it receives written instructions from the applicable Required Facility Lenders.

2.3.3  Cash Collateral.  If any Canadian LC Obligations, whether or not then due or payable, shall for any reason be outstanding at any time (a) that an Event of Default exists, (b) that a Canadian Overadvance exists, (c) after the Canadian Revolver Commitment Termination Date, or (d) within twenty (20) Business Days prior to the Facility Termination Date, then the Canadian Borrower shall, at Canadian Issuing Bank’s or the Agent’s request, Cash Collateralize the stated amount of all outstanding Letters of Credit issued for the account of the Canadian Borrower and pay to Canadian Issuing Bank the amount of all other Canadian LC Obligations.  The Canadian Borrower shall, on demand by Canadian Issuing Bank or the Agent from time to time, Cash Collateralize the Canadian LC Obligations of any Defaulting Lender that is a Canadian Lender.  If the Canadian Borrower fails to provide any Cash Collateral as required hereunder, the Canadian Lenders may (and shall upon direction of the Agent) advance, as Canadian Revolver Loans, the amount of the Cash Collateral required (whether or not the Canadian Revolver Commitments have terminated, any Canadian Overadvance exists or is created thereby or the conditions in Section 6 are satisfied).

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2.4                               Existing Letters of Credit.  By their execution of this Agreement, the parties hereto agree that (i) on the Closing Date (without any further action by any Person), the Existing Letters of Credit listed on Schedule 1.1(b) shall be deemed to have been issued by the applicable Issuing Bank under this Agreement and the rights and obligations of the applicable Issuing Bank and the account party thereunder shall be subject to the terms hereof, and (ii) Existing Letters of Credit 68089111 and 68089112 in the amounts of $40,733,573.70 and Cdn$5,261,584.00, respectively, which were issued on December 28, 2012 by Bank of America in favor of JPMorgan Chase Bank, N.A., shall be deemed cancelled upon the receipt by Bank of America of an authenticated SWIFT authorizing the cancellation of such Existing Letters of Credit in accordance with the terms of such Existing Letters of Credit.

SECTION 3.        INTEREST; FEES AND CHARGES

3.1                               Interest.

3.1.1  Rates and Payment of Interest.

(a)                                 The Obligations shall bear interest (i) if a U.S. Base Rate Loan, at the U.S. Base Rate in effect from time to time, plus the Applicable Margin; (ii) if a LIBOR Loan, at LIBOR for the applicable Interest Period, plus the Applicable Margin; (iii) if a Canadian Prime Rate Loan, at the Canadian Prime Rate in effect from time to time, plus the Applicable Margin, (iv) if a Canadian Base Rate Loan, at the Canadian Base Rate in effect from time to time, plus the Applicable Margin, (v) if a Canadian BA Rate Loan, at the Canadian BA Rate for the applicable Interest Period, plus the Applicable Margin, (vi) if any other U.S. Facility Obligation that is then due and payable (including, to the extent permitted by law, interest not paid when due), at the U.S. Base Rate in effect from time to time, plus the Applicable Margin for U.S. Base Rate Loans; and (vii) if any other Canadian Facility Obligation that is then due and payable (including, to the extent permitted by law, interest not paid when due), at the Canadian Prime Rate in effect from time to time, plus the Applicable Margin for Canadian Prime Rate Loans.  Interest shall accrue from the date the Loan is advanced or the Obligation becomes payable, until paid by the applicable Borrower(s).  If a Loan is repaid on the same day made, one day’s interest shall accrue.

(b)                                 Interest on the Revolver Loans shall be payable in the currency (i.e., Dollars or Canadian Dollars, as the case may be) of the underlying Revolver Loan.

(c)                                  During the continuation of any Event of Default, if Required Lenders in their discretion so elect, all Obligations shall bear interest at the Default Rate (whether before or after any judgment); provided, however, that upon the occurrence and during the continuance of an Event of Default under Section 11.1(a) or 11.1(f), the Default Rate shall become immediately applicable without any election of the Required Lenders.  Each Loan Party acknowledges that the cost and expense to the Agent and the Lenders due to an Event of Default are difficult to ascertain and that the Default Rate is a fair and reasonable estimate to compensate the Agent and the Lenders therefor.

(d)                                 Interest accrued on the Loans shall be due and payable in arrears, (i) for any U.S. Base Rate Loan, Canadian Base Rate Loan or Canadian Prime Rate Loan, on the first day of each month; (ii) for any LIBOR Loan or Canadian BA Rate Loan, on the last day of its Interest Period and (iii) on any date of prepayment, with respect to the principal amount of Loans being

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prepaid.  In addition, interest accrued on the Canadian Revolver Loans shall be due and payable in arrears on the Canadian Revolver Commitment Termination Date and interest accrued on the U.S. Revolver Loans shall be due and payable in arrears on the U.S. Revolver Commitment Termination Date.   Interest accrued on any other Obligations shall be due and payable as provided in the Loan Documents and, if no payment date is specified, shall be due and payable on demand.  Notwithstanding the foregoing, interest accrued at the Default Rate shall be due and payable on demand.

3.1.2  Application of LIBOR to Outstanding Loans.

(a)                                 The Borrowers may on any Business Day, subject to delivery of a Notice of Conversion/Continuation and the other terms hereof, elect to convert any portion of the U.S. Base Rate Loans or the Canadian Base Rate Loans, as applicable to, or to continue any LIBOR Loan at the end of its Interest Period as, a LIBOR Loan.  During any Default or Event of Default, the Agent may (and shall at the direction of Required Facility Lenders of the applicable Borrower) declare that no Loan may be made, converted or continued as a LIBOR Loan.

(b)                                 Whenever a Borrower desires to convert or continue Loans as LIBOR Loans, the Loan Party Agent shall give the Agent a Notice of Conversion/Continuation, no later than 11:00 a.m. at least three (3) Business Days prior to the requested conversion or continuation date.  Promptly after receiving any such notice, the Agent shall notify each Applicable Lender thereof.  Each Notice of Conversion/Continuation shall be irrevocable, and shall specify the amount of Loans to be converted or continued, the conversion or continuation date (which shall be a Business Day), and the duration of the Interest Period (which shall be deemed to be one month if not specified).  If, upon the expiration of any Interest Period in respect of any LIBOR Loans, the Loan Party Agent shall have failed to deliver a Notice of Conversion/Continuation with respect thereto as required above, the Borrowers shall be deemed to have elected to convert such Loans into U.S. Base Rate Loans (if owing by the U.S. Borrower) or Canadian Base Rate Loans (if owing by the Canadian Borrower).

3.1.3  Application of Canadian BA Rate to Outstanding Loans.

(a)                                 The Canadian Borrower may on any Business Day, subject to delivery of a Notice of Conversion/Continuation and the other terms hereof, elect to convert any portion of the Canadian Prime Rate Loans, or to continue any Canadian BA Rate Loan at the end of its Interest Period as a Canadian BA Rate Loan; provided, however that such Canadian BA Rate Loans may only be so converted at the end of the Interest Period applicable thereto.  During any Default or Event of Default, the Agent may (and shall at the direction of Required Facility Lenders of the Canadian Borrower) declare that no Loan may be made, converted or continued as a Canadian BA Rate Loan.

(b)                                 Whenever the Canadian Borrower desires to convert or continue Loans as Canadian BA Rate Loans, the Loan Party Agent shall give the Agent a Notice of Conversion/Continuation, no later than 11:00 a.m. at least three (3) Business Days prior to the requested conversion or continuation date.  Promptly after receiving any such notice, the Agent shall notify each Canadian Lender thereof.  Each Notice of Conversion/Continuation shall be irrevocable, and shall specify the amount of Loans to be converted or continued, the conversion or continuation date (which shall be a Business Day), and the duration of the Interest Period (which shall be deemed to be one month if not specified).  If, upon the expiration of any Interest

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Period in respect of any Canadian BA Rate Loans, the Loan Party Agent shall have failed to deliver a Notice of Conversion/Continuation with respect thereto as required above, the Canadian Borrower shall be deemed to have elected to convert such Loans into Canadian Prime Rate Loans.

3.1.4  Interest Periods.  In connection with the making, conversion or continuation of any LIBOR Loans or Canadian BA Rate Loans, the Loan Party Agent, on behalf of the applicable Borrower, shall select an interest period to apply (the “Interest Period”), which interest period shall be thirty (30), sixty (60), or ninety (90) days; provided, however, that:

(a)                                 the Interest Period shall commence on the date the Loan is made or continued as, or converted into, a LIBOR Loan or Canadian BA Rate Loan, and shall expire on the numerically corresponding day in the calendar month at its end;

(b)                                 if any Interest Period commences on a day for which there is no corresponding day in the calendar month at its end or if such corresponding day falls after the last Business Day of such month, then the Interest Period shall expire on the last Business Day of such month;

(c)                                  if any Interest Period would expire on a day that is not a Business Day, the period shall expire on the next Business Day; and

(d)                                 no Interest Period shall extend beyond the Facility Termination Date (or, in the case of any Loan owing by the Canadian Borrower, the Canadian Revolver Commitment Termination Date, if earlier).

3.2                               Fees.

3.2.1  Unused Line Fee.

(a)                                 The Canadian Borrower shall pay to the Agent, for the Pro Rata benefit of the Canadian Lenders, a fee equal to (i) for any period during which the Canadian Revolver Exposure is less than fifty percent (50%) of the Canadian Revolver Commitments, 0.375% per annum times the average daily amount by which the Canadian Revolver Commitments exceed the Canadian Revolver Exposure during such period, and (ii) for any period during which the Canadian Revolver Exposure is equal to or greater than fifty percent (50%) of the Canadian Revolver Commitments, 0.25% per annum times the average daily amount by which the Canadian Revolver Commitments exceed the Canadian Revolver Exposure during such period. Such fee shall be payable in arrears, on the first day of January, April, July and October of each year and on the Canadian Revolver Commitment Termination Date.

(b)                                 The U.S. Borrower shall pay to the Agent, for the Pro Rata benefit of the U.S. Lenders, a fee equal to (i) for any period during which the U.S. Revolver Exposure is less than fifty percent (50%) of the U.S. Revolver Commitments, 0.375% per annum times the average daily amount by which the U.S. Revolver Commitments exceed the U.S. Revolver Exposure during such period and (ii) for any period during which the U.S. Revolver Exposure is equal to or greater than fifty percent (50%) of the U.S. Revolver Commitments, 0.25% per annum times the average daily amount by which the U.S. Revolver Commitments exceed the U.S. Revolver Exposure during such period.  Such fee shall be payable in arrears, on the first day of January, April, July and October of each year and on the U.S. Revolver Commitment Termination Date.

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3.2.2  U.S. LC Facility Fees.  The U.S. Borrower shall pay (a) to the Agent, for the Pro Rata benefit of the U.S. Lenders, a fee equal to the per annum rate of the Applicable Margin in effect for LIBOR Loans times the average daily stated amount of U.S. Letters of Credit, which fee shall be payable monthly in arrears, on the first (1st) day of each month; (b) to U.S. Issuing Bank, for its own account, a fronting fee equal to .125% per annum on the stated amount of each U.S. Letter of Credit issued by U.S. Issuing Bank, which fee shall be payable monthly in arrears, on the first (1st) day of each month; and (c) to U.S. Issuing Bank, for its own account, all customary charges associated with the issuance, amending, negotiating, payment, processing, transfer and administration of U.S. Letters of Credit, which charges shall be paid as and when incurred; provided that, for the avoidance of doubt, all amounts payable pursuant to this clause (c) with respect to the Existing Letters of Credit shall be determined in accordance with the applicable documentation thereto.  During an Event of Default, if the Required Lenders so elect (pursuant to Section 3.1.1(c)) the fee payable under clause (a) shall be increased by two percent (2%) per annum.

3.2.3  Canadian LC Facility Fees.  The Canadian Borrower shall pay (a) to the Agent, for the Pro Rata benefit of the Canadian Lenders, a fee equal to the per annum rate of the Applicable Margin in effect for Canadian BA Rate Loans times the average daily stated amount of Canadian Letters of Credit, which fee shall be payable monthly in arrears, on the first (1st) day of each month; (b) to Canadian Issuing Bank, for its own account, a fronting fee equal to .125% per annum on the stated amount of each Canadian Letter of Credit issued by Canadian Issuing Bank, which fee shall be payable monthly in arrears, on the first (1st) day of each month; and (c) to Canadian Issuing Bank, for its own account, all customary charges associated with the issuance, amending, negotiating, payment, processing, transfer and administration of Canadian Letters of Credit, which charges shall be paid as and when incurred; provided that, for the avoidance of doubt, all amounts payable pursuant to this clause (c) with respect to the Existing Letters of Credit shall be determined in accordance with the applicable documentation thereto.  During an Event of Default if the Required Lenders so elect (pursuant to Section 3.1.1(c)), the fee payable under clause (a) shall be increased by two percent (2%) per annum.

3.2.4  Other Fees.  The U.S. Borrower shall pay such other fees as described in the Fee Letter.

3.3                               Computation of Interest; Fees; Yield Protection.  All interest, as well as fees and other charges calculated on a per annum basis, shall be computed for the actual days elapsed, based on a year of 360 days, or, in the case of interest based on the Canadian Prime Rate or Canadian Base Rate, on the basis of a 365 day year.  Each determination by the Agent of any interest, fees or interest rate hereunder shall be final, conclusive and binding for all purposes, absent manifest error.  All fees shall be fully earned when due and shall not be subject to rebate, refund or proration.  All fees payable under Section 3.2 are compensation for services and are not, and shall not be deemed to be, interest or any other charge for the use, forbearance or detention of money.  A certificate setting forth in reasonable detail amounts payable by any Borrower under Section 3.4, 3.7, 3.9, 5.9.2 or 10.1.20, submitted to the Loan Party Agent by the Agent or the affected Lender or the affected Issuing Bank, as applicable, shall be final, conclusive and binding for all purposes, absent manifest error, and such Borrower shall pay such amounts to the appropriate party within ten (10) days following receipt of the certificate.  For the purposes of the Interest Act (Canada), the yearly rate of interest to which any rate calculated on the basis of a period of time different from the actual number of days in the year (360 days, for example) is equivalent is the stated rate multiplied by the actual number of days in the year (365

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or 366, as applicable) and divided by the number of days in the shorter period (360 days, in the example), and the parties hereto acknowledge that there is a material distinction between the nominal and effective rates of interest and that they are capable of making the calculations necessary to compare such rates and that the calculations herein are to be made using the nominal rate method and not on any basis that gives effect to the principle of deemed reinvestment of interest.

3.4                               Reimbursement Obligations.  Each Borrower shall reimburse the Agent for all Extraordinary Expenses incurred by the Agent in reference to such Borrower or its related Loan Party Group Obligations or Collateral of its related Loan Party Group.  In addition to such Extraordinary Expenses, such Borrower shall also reimburse the Agent for all legal, accounting, appraisal, consulting,  and other documented fees, costs and expenses, without duplication, incurred by it in connection with (a) negotiation and preparation of any Loan Documents, including any amendment or other modification thereof; (b) administration of and actions relating to any Collateral for its Obligations, Loan Documents and transactions contemplated thereby, including any actions taken to perfect or maintain priority of the Agent’s Liens on any such Collateral, to maintain any insurance required hereunder or to verify such Collateral; and (c) each inspection, audit or appraisal with respect to any Loan Party within such Borrower’s related Loan Party Group or Collateral securing such Loan Party Group’s Obligations, whether prepared by the Agent’s personnel or a third party.  All reasonable legal, accounting and consulting fees and expenses incurred by Agent Professionals in reference to a Borrower’s related Loan Party Group or its related Loan Party Group Obligations or Collateral of such Borrower’s related Loan Party Group shall be charged to such Borrower at the actual rate charged by such Agent Professionals.  The Borrowers acknowledge that counsel may provide the Agent with a benefit, such as a discount, credit or other accommodation, based on counsel’s overall relationship with the Agent, including fees paid hereunder.  In addition to the Extraordinary Expenses of the Agent, after the occurrence and during the continuance of an Event of Default, each Borrower shall reimburse the Lenders for any reasonable out-of-pocket expenses incurred by such Lenders in reference to such Borrower or its related Loan Party Group Obligations or Collateral of its related Loan Party Group, provided that such Lenders shall be entitled to reimbursement for no more than one counsel representing all such Lenders.  If, for any reason (including inaccurate reporting on financial statements or a Compliance Certificate), it is determined that a higher Applicable Margin should have applied to a period than was actually applied, then the proper margin shall be applied retroactively and the Borrowers shall pay to the Agent, for the Pro Rata benefit of the Lenders, an amount equal to the difference between the amount of interest and fees that would have accrued using the proper margin and the amount actually paid.  All amounts payable by the Borrowers under this Section 3.4 shall be due and payable in accordance with Section 3.3.

3.5                               Illegality.  If any Lender determines that any Applicable Law has made it unlawful, or that any Governmental Authority has asserted that it is unlawful, for any Lender or its applicable Lending Office to make, maintain or fund Interest Period Loans, or to determine or charge interest rates based upon LIBOR or the Canadian BA Rate, or any Governmental Authority has imposed material restrictions on the authority of such Lender to purchase or sell, or to take deposits of, Dollars in the London interbank market, or Canadian Dollars through bankers’ acceptances then, on notice thereof by such Lender to the Agent, any obligation of such Lender to make or continue Interest Period Loans or to convert Floating Rate Loans to Interest Period Loans shall be suspended until such Lender notifies the Agent that the circumstances giving rise to such determination no longer exist.  Upon delivery of such notice, the affected

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Borrower shall prepay or, if applicable, convert all Interest Period Loans of such Lender to Floating Rate Loans, either on the last day of the Interest Period therefor, if such Lender may lawfully continue to maintain such Interest Period Loans to such day, or immediately, if such Lender may not lawfully continue to maintain such Interest Period Loans.  Upon any such prepayment or conversion, the affected Borrower shall also pay accrued interest on the amount so prepaid or converted.  If any Lender invokes this Section 3.5, such Lender shall use reasonable efforts to notify the Loan Party Agent and the Agent when the conditions giving rise to such action no longer exists; provided, however, that such Lender shall have no liability to the Borrowers or to any other Person for its failure to provide such notice.

3.6                               Inability to Determine Rates.  If Required Lenders notify the Agent for any reason in connection with a request for a Borrowing of, or conversion to or continuation of, an Interest Period Loan that (a) Dollar deposits or bankers’ acceptances are not being offered to, as regards LIBOR, banks in the London interbank Eurodollar market or, as regards Canadian BA Rate, Persons in Canada, for the applicable amount and Interest Period of such Loan, (b) adequate and reasonable means do not exist for determining LIBOR or the Canadian BA Rate for the requested Interest Period, or (c) LIBOR or the Canadian BA Rate for the requested Interest Period does not adequately and fairly reflect the cost to such Lenders of funding such Loan, then the Agent will promptly so notify the Loan Party Agent and each Applicable Lender.  Thereafter, the obligation of the Applicable Lenders to make or maintain affected Interest Period Loans shall be suspended until the Agent (upon instruction by Required Lenders) revokes such notice.  Upon receipt of such notice, the Loan Party Agent may revoke any pending request for a Borrowing of, or conversion to or continuation of, an Interest Period Loan or, failing that, will be deemed to have submitted a request for a Floating Rate Loan.  If any Lender invokes this Section 3.6, such Lender shall use reasonable efforts to notify the Loan Party Agent and the Agent when the conditions giving rise to such action no longer exists; provided, however, that such Lender shall have no liability to the Borrowers or to any other Person for its failure to provide such notice.

3.7                               Increased Costs; Capital Adequacy.

3.7.1  Change in Law.  If any Change in Law shall:

(a)                                 impose modify or deem applicable any reserve, liquidity, special deposit, compulsory loan, insurance charge or similar requirement against assets of, deposits with or for the account of, or credit extended or participated in by, any Lender (except any reserve requirement reflected in LIBOR or the Canadian BA Rate) or any Issuing Bank;

(b)                                 subject any Lender or any Issuing Bank to any Tax with respect to any Loan, Loan Document, Letter of Credit or participation in LC Obligations, or change the basis of taxation of payments to such Lender or Issuing Bank in respect thereof (except for Indemnified Taxes or Other Taxes covered by Section 5.9 and the imposition of, or any change in the rate of, any Excluded Tax payable by such Lender or Issuing Bank); or

(c)                                  impose on any Lender or any Issuing Bank or the London interbank market any other condition, cost or expense affecting any Loan, Loan Document, Letter of Credit or participation in LC Obligations;

and the result thereof shall be to increase the cost to such Lender of making or maintaining any Interest Period Loan (or of maintaining its obligation to make any such Loan), or to increase the

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cost to such Lender or Issuing Bank of participating in, issuing or maintaining any Letter of Credit (or of maintaining its obligation to participate in or to issue any Letter of Credit), or to reduce the amount of any sum received or receivable by such Lender or Issuing Bank hereunder (whether of principal, interest or any other amount) then, upon request of such Lender or Issuing Bank, the Borrower to which such Lender or Issuing Bank has a Commitment shall pay to such Lender or Issuing Bank, as applicable, such additional amount or amounts as will compensate such Lender or Issuing Bank, as applicable, for such additional costs incurred or reduction suffered, in each case, in accordance with Section 3.3.

3.7.2  Capital Adequacy.  If any Lender or Issuing Bank determines that any Change in Law affecting such Lender or Issuing Bank or any Lending Office of such Lender or such Lender’s or Issuing Bank’s holding company, if any, regarding capital requirements has or would have the effect of reducing the rate of return on such Lender’s, Issuing Bank’s or holding company’s capital as a consequence of this Agreement, or such Lender’s or Issuing Bank’s Commitments, Loans, Letters of Credit or participations in LC Obligations, to a level below that which such Lender, Issuing Bank or holding company could have achieved but for such Change in Law (taking into consideration such Lender’s, Issuing Bank’s and holding company’s policies with respect to capital adequacy), then from time to time the Borrower to which such Lenders or Issuing Bank has a Commitment will pay to such Lender or Issuing Bank, as the case may be, such additional amount or amounts as will compensate it or its holding company for any such reduction suffered, in each case, in accordance with Section 3.3.

3.7.3  Compensation.  Failure or delay on the part of any Lender or Issuing Bank to demand compensation pursuant to this Section 3.7 shall not constitute a waiver of its right to demand such compensation, but a Borrower shall not be required to compensate a Lender to such Borrower or Issuing Bank for any increased costs incurred or reductions suffered more than six (6) months prior to the date that the Lender or Issuing Bank notifies the Loan Party Agent of the Change in Law giving rise to such increased costs or reductions and of such Lender’s or Issuing Bank’s intention to claim compensation therefor (except that, if the Change in Law giving rise to such increased costs or reductions is retroactive, then the six-month period referred to above shall be extended to include the period of retroactive effect thereof).

3.8                               Mitigation.  If any Lender gives a notice under Section 3.5 or requests compensation under Section 3.7, or if any Borrower is required to pay additional amounts with respect to a Lender under Section 5.9, then such Lender shall use reasonable efforts to designate a different Lending Office or to assign its rights and obligations hereunder to another of its offices, branches or Affiliates, if, in the judgment of such Lender, such designation or assignment (a) would eliminate the need for such notice or reduce amounts payable or to be withheld in the future, as applicable; and (b) in each case, would not subject such Lender to any unreimbursed cost or expense and would not otherwise be disadvantageous to such Lender.  Each affected Borrower shall pay all reasonable costs and expenses incurred by any Lender that has issued a Commitment to such Borrower in connection with any such designation or assignment.

3.9                               Funding Losses.  If for any reason (other than default by a Lender) (a) any Borrowing of, or conversion to or continuation of, an Interest Period Loan does not occur on the date specified therefor in a Notice of Borrowing or Notice of Conversion/Continuation (whether or not withdrawn), (b) any repayment or conversion of an Interest Period Loan occurs on a day other than the end of its Interest Period, or (c) any Borrower fails to repay an Interest Period

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Loan when required hereunder, then such Borrower shall pay to the Agent its customary administrative charge and to each Lender all losses and expenses that it sustains as a consequence thereof, including any loss or expense arising from liquidation or redeployment of funds or from fees payable to terminate deposits of matching funds, but excluding loss of margin.  All amounts payable by the Borrowers under this Section 3.9 shall be due and payable in accordance with Section 3.3.  The Lenders shall not be required to purchase Dollar deposits in the London interbank market or any other offshore Dollar market to fund any LIBOR Loan, but the provisions hereof shall apply as if each Lender had purchased such deposits.

3.10                        Maximum Interest.  Notwithstanding anything to the contrary contained in any Loan Document, the interest paid or agreed to be paid under the Loan Documents shall not exceed the maximum rate of non-usurious interest permitted by Applicable Law (“maximum rate”).  If the Agent or any Lender shall receive interest in an amount that exceeds the maximum rate, the excess interest shall be applied to the principal of the Obligations of the Borrower to which such excess interest relates or, if it exceeds such unpaid principal, refunded to such Borrower.  In determining whether the interest contracted for, charged or received by the Agent or a Lender exceeds the maximum rate, such Person may, to the extent permitted by Applicable Law, (a) characterize any payment that is not principal as an expense, fee or premium rather than interest; (b) exclude voluntary prepayments and the effects thereof; and (c) amortize, prorate, allocate and spread in equal or unequal parts the total amount of interest throughout the contemplated term of the Obligations hereunder.  Without limiting the generality of the foregoing provisions of this Section 3.10, if any provision of any of the Loan Documents would obligate any Canadian Domiciled Loan Party to make any payment of interest with respect to the Canadian Facility Obligations in an amount or calculated at a rate which would be prohibited by Applicable Law or would result in the receipt of interest with respect to the Canadian Facility Obligations at a criminal rate (as such terms are construed under the Criminal Code (Canada)), then notwithstanding such provision, such amount or rates shall be deemed to have been adjusted with retroactive effect to the maximum amount or rate of interest, as the case may be, as would not be so prohibited by law or so result in a receipt by the applicable recipient of interest with respect to the Canadian Facility Obligations at a criminal rate, such adjustment to be effected, to the extent necessary, as follows:  (i) first, by reducing the amount or rates of interest required to be paid by the Canadian Facility Loan Parties to the applicable recipient under the Loan Documents; and (ii) thereafter, by reducing any fees, commissions, premiums and other amounts required to be paid by the Canadian Facility Loan Parties to the applicable recipient which would constitute interest with respect to the Canadian Facility Obligations for purposes of Section 347 of the Criminal Code (Canada).  Notwithstanding the foregoing, and after giving effect to all adjustments contemplated thereby, if the applicable recipient shall have received an amount in excess of the maximum permitted by that section of the Criminal Code (Canada), then the Canadian Facility Loan Parties shall be entitled, by notice in writing to the Agent, to obtain reimbursement from the applicable recipient in an amount equal to such excess, and pending such reimbursement, such amount shall be deemed to be an amount payable by the applicable recipient to the applicable Canadian Facility Loan Party.  Any amount or rate of interest with respect to the Canadian Facility Obligations referred to in this Section 3.10 shall be determined in accordance with generally accepted actuarial practices and principles as an effective annual rate of interest over the term that any Canadian Revolver Loans to the Canadian Borrower remains outstanding on the assumption that any charges, fees or expenses that fall within the meaning of “interest” (as defined in the Criminal Code (Canada)) shall, if they relate to a specific period of time, be pro rated over that period of time and otherwise be pro-rated over the period from the Closing Date to the date of Full Payment of the Canadian Facility Obligations,

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and, in the event of a dispute, a certificate of a Fellow of the Canadian Institute of Actuaries appointed by the Agent shall be conclusive for the purposes of such determination.

SECTION 4.        LOAN ADMINISTRATION

4.1                               Manner of Borrowing and Funding Loans.

4.1.1  Notice of Borrowing.

(a)                                 Whenever a Borrower desires funding of a Borrowing of Revolver Loans, the Loan Party Agent shall give the Agent a Notice of Borrowing.  Such notice must be received by Agent no later than 11:00 a.m. (i) on the Business Day of the requested funding date, in the case of Floating Rate Loans, (ii) at least three (3) Business Days prior to the requested funding date, in the case of LIBOR Loans, and (iii) at least three (3) Business Days prior to the requested funding date, in the case of Canadian BA Rate Loans.  Notices received after 11:00 a.m. shall be deemed received on the next Business Day.  Each Notice of Borrowing shall be irrevocable and shall specify (A) the amount of the Borrowing, (B) the requested funding date (which must be a Business Day), (C) whether the Borrowing is to be made as a U.S. Base Rate Loan or a LIBOR Revolver Loan, in the case of the U.S. Borrower, or a Canadian Base Rate Loan, LIBOR Revolver Loan, Canadian Prime Rate Loan or Canadian BA Rate Loan, in the case of the Canadian Borrower, (D) in the case of Interest Period Loans, the duration of the applicable Interest Period (which shall be deemed to be thirty (30) days if not specified), (E) the Facility Commitment under which such Borrowing is proposed to be made and, if such Borrowing is requested for the Canadian Borrower, whether such Loan is to be denominated in Dollars or Canadian Dollars, and (F) as of the proposed date of such Borrowing, the aggregate amount of Debt that the U.S. Borrower and its Restricted Subsidiaries are or will be permitted to incur pursuant to clause 2 of the definition of “Permitted Indebtedness” as set forth in each Senior High Yield Indenture.

(b)                                 Unless payment is otherwise timely made by a Borrower, the becoming due of any amount required to be paid with respect to any of the Obligations of the Loan Party Group to which such Borrower belongs (whether principal, interest, fees or other charges, including Extraordinary Expenses, LC Obligations, Cash Collateral, Secured Hedging Obligations and Bank Product Debt) shall be deemed to be a request for Revolver Loans by such Borrower on the due date, in the amount of such Obligations and shall bear interest at the per annum rate applicable hereunder to U.S. Base Rate Loans, in the case of such Obligations owing by any U.S. Facility Loan Party, or to Canadian Prime Rate Loans, in the case of such Obligations owing by a Canadian Domiciled Loan Party.  The proceeds of such Revolver Loans shall be disbursed as direct payment of the relevant Obligation.  In addition, the Agent may, at its option, charge such Obligations of a Loan Party Group against any operating, investment or other account of a Loan Party within such Loan Party Group maintained with the Agent or any of its Affiliates.

(c)                                  If a Borrower maintains any disbursement account with Bank of America or any branch or Affiliate of Bank of America, then presentation for payment of any Payment Item when there are insufficient funds to cover it shall be deemed to be a request for Revolver Loans by such Borrower on the date of such presentation, in the amount of the Payment Item, and shall bear interest at the per annum rate applicable hereunder to U.S. Base Rate Loans, in the case of insufficient funds owing by any U.S. Facility Loan Party, or to Canadian Prime Rate Loans, in

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the case of insufficient funds owing by a Canadian Facility Loan Party.  The proceeds of such Revolver Loans may be disbursed directly to the disbursement account t.

4.1.2  Fundings by Lenders.  Each Applicable Lender shall timely honor its Facility Commitment by funding its Pro Rata share of each Borrowing of Revolver Loans under such Facility Commitment that is properly requested hereunder; provided, however, that no Lender shall be required to honor its Facility Commitment by funding its Pro Rata share of any Borrowing that would cause the U.S. Revolver Exposure to exceed the U.S. Borrowing Base or the Canadian Revolver Exposure to exceed the Canadian Borrowing Base, as applicable.  Except for Borrowings to be made as Swingline Loans, the Agent shall endeavor to notify the Applicable Lenders of each Notice of Borrowing (or deemed request for a Borrowing) by 12:00 noon on the proposed funding date for Floating Rate Loans or by 3:00 p.m. at least two (2) Business Days before any proposed funding of Interest Period Loans.  Each Applicable Lender shall fund to the Agent such Lender’s Pro Rata share of the Borrowing to the account specified by the Agent in immediately available funds not later than 2:00 p.m. on the requested funding date, unless the Agent’s notice is received after the times provided above, in which event each Applicable Lender shall fund its Pro Rata share by 11:00 a.m. on the next Business Day.  Subject to its receipt of such amounts from the Applicable Lenders, the Agent shall disburse the proceeds of the Revolver Loans as directed by the Loan Party Agent.  Unless the Agent shall have received (in sufficient time to act) written notice from an Applicable Lender that it does not intend to fund its Pro Rata share of a Borrowing, the Agent may assume that such Applicable Lender has deposited or promptly will deposit its share with the Agent, and the Agent may disburse a corresponding amount to the applicable Borrower.  If an Applicable Lender’s share of any Borrowing is not received by the Agent, then the applicable Borrower agrees to repay to the Agent on demand the amount of such share, together with interest thereon from the date disbursed until repaid, at the rate applicable to such Borrowing.

4.1.3  Swingline Loans; Settlement.

(a)                                 The Agent may, but shall not be obligated to (and shall not to the extent that it has actual knowledge that the conditions in Section 6 have not been satisfied), advance U.S. Swingline Loans to the U.S. Borrower, up to an aggregate outstanding amount equal to ten percent (10%) of the U.S. Revolver Commitments at such time, unless the funding is specifically required to be made by all U.S. Lenders hereunder.  Each U.S. Swingline Loan shall constitute a U.S. Revolver Loan for all purposes (including, without limitation, Section 2.1), except that payments thereon shall be made to the Agent for its own account.  The obligation of the U.S. Borrower to repay U.S. Swingline Loans shall be evidenced by the records of the Agent and need not be evidenced by any promissory note.  All U.S. Swingline Loans shall be denominated in Dollars and shall be U.S. Base Rate Loans.

(b)                                 To facilitate administration of the U.S. Revolver Loans, the U.S. Lenders and the Agent agree (which agreement is solely among them, and not for the benefit of or enforceable by any Borrower) that settlement among them with respect to U.S. Swingline Loans and other U.S. Revolver Loans may take place on a date determined from time to time by the Agent, which shall occur at least once each week.  On each settlement date, settlement shall be made with each U.S. Lender in accordance with the Settlement Report delivered by the Agent to the U.S. Lenders.  Between settlement dates, the Agent may in its discretion apply payments on U.S. Revolver Loans to U.S. Swingline Loans, regardless of any designation by the U.S. Borrower or any provision herein to the contrary.  Each U.S. Lender’s obligation to make settlements with the

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Agent is absolute and unconditional, without offset, counterclaim or other defense, and whether or not the U.S. Revolver Commitments have terminated, a U.S. Overadvance exists or the conditions in Section 6 are satisfied.  If, due to an Insolvency Proceeding with respect to the U.S. Borrower or otherwise, any U.S. Swingline Loan may not be settled among the U.S. Lenders hereunder, then each U.S. Lender shall be deemed to have purchased from the Agent a Pro Rata participation in each unpaid U.S. Swingline Loan and shall transfer the amount of such participation to the Agent, in immediately available funds, within one (1) Business Day after the Agent’s request therefor.

(c)                                  The Agent may, but shall not be obligated to (and shall not to the extent that it has actual knowledge that the conditions in Section 6 have not been satisfied), request that Bank of America (Canada) advance Canadian Swingline Loans to the Canadian Borrower, up to an aggregate outstanding amount equal to the Dollar Equivalent of ten percent (10%) of the Canadian Revolver Commitments at such time, unless the funding is specifically required to be made by all Canadian Lenders hereunder.  Each Canadian Swingline Loan shall constitute a Canadian Revolver Loan for all purposes, except that payments thereon shall be made to the Agent for Bank of America (Canada)’s account.  The obligation of the Canadian Borrower to repay Canadian Swingline Loans shall be evidenced by the records of the Agent and need not be evidenced by any promissory note.  All Canadian Swingline Loans shall be denominated in Canadian Dollars and shall be Canadian Prime Rate Loans.

(d)                                 To facilitate administration of the Canadian Revolver Loans, the Canadian Lenders and the Agent, on behalf of Bank of America (Canada), agree (which agreement is solely among them, and not for the benefit of or enforceable by any Borrower) that settlement among them with respect to Canadian Swingline Loans and other Canadian Revolver Loans may take place on a date determined from time to time by the Agent, which shall occur at least once each week.  On each settlement date, settlement shall be made with each Canadian Lender in accordance with the Settlement Report delivered by the Agent to the Canadian Lenders.  Between settlement dates, the Agent may in its discretion apply payments on Canadian Revolver Loans to Canadian Swingline Loans, regardless of any designation by the Canadian Borrower or any provision herein to the contrary.  Each Canadian Lender’s obligation to make settlements with the Agent, on behalf of Bank of America (Canada), is absolute and unconditional, without offset, counterclaim or other defense, and whether or not the Canadian Revolver Commitments have terminated, a Canadian Overadvance exists or the conditions in Section 6 are satisfied.  If, due to an Insolvency Proceeding with respect to the Canadian Borrower or otherwise, any Canadian Swingline Loan may not be settled among Canadian Lenders hereunder, then each Canadian Lender shall be deemed to have purchased from the Agent a Pro Rata participation in each unpaid Canadian Swingline Loan and shall transfer the amount of such participation to the Agent, in immediately available funds, within one (1) Business Day after Agent’s request therefor.

4.1.4  Notices.  Each Borrower authorizes the Agent and the Lenders to extend, convert or continue Loans, effect selections of interest rates, and transfer funds to or on behalf of the applicable Borrower based on telephonic or e-mailed instructions by the Loan Party Agent to the Agent.  The Loan Party Agent shall confirm each such request by prompt delivery to the Agent of a Notice of Borrowing or Notice of Conversion/Continuation, if applicable, but if it differs materially from the action taken by the Agent or the Lenders, the records of the Agent and the Lenders shall govern.  Neither the Agent nor any Lender shall have any liability for any loss suffered by a Borrower as a result of the Agent or any Lender acting upon its understanding of

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telephonic or e-mailed instructions from a person believed in good faith by the Agent or any Lender to be a person authorized to give such instructions on the Loan Party Agent’s behalf.

4.2                               Defaulting Lender.  The Agent may (but shall not be required to), in its discretion, retain any payments or other funds received by the Agent that are to be provided to a Defaulting Lender hereunder, and may apply such funds to such Lender’s defaulted obligations to satisfy such Lender’s obligations hereunder until all such unsatisfied obligations are fully paid, or readvance the funds to the Borrower to which such Lender has issued a Facility Commitment in accordance with this Agreement.  The failure of any Lender to fund a Loan, to make any payment in respect of LC Obligations or to otherwise perform its obligations hereunder shall not relieve any other Lender of its obligations, and no Lender shall be responsible for default by another Lender.  The Lenders and the Agent agree (which agreement is solely among them, and not for the benefit of or enforceable by any Borrower) that, solely for purposes of determining a Defaulting Lender’s right to vote on matters relating to the Loan Documents and to share in payments, fees and Collateral proceeds thereunder, a Defaulting Lender shall not be deemed to be a “Lender” until all its defaulted obligations have been cured.

4.3                               Number and Amount of Interest Period Loans; Determination of Rate.  For ease of administration, all Interest Period Loans of the same Type to a Borrower having the same length and beginning date of their Interest Periods and the same currency shall be aggregated together, and such Loans shall be allocated among the Applicable Lenders on a Pro Rata basis.  With respect to the U.S. Borrower, no more than five (5) Borrowings of LIBOR Loans may be outstanding at any time, and each Borrowing of LIBOR Loans when made, continued or converted shall be in a minimum amount of $1,000,000 or an increment of $500,000, in excess thereof.  With respect to the Canadian Borrower, no more than five (5) Borrowings of Interest Period Loans may be outstanding at any time, and each Borrowing of Interest Loans when made, continued or converted shall be in a minimum amount of $1,000,000 (or, in the case of Canadian BA Rate Loans, Cdn$1,000,000) or an increment of $500,000 (or, in the case of Canadian BA Rate Loans, Cdn$500,000), in excess thereof.  Upon determining LIBOR or the Canadian BA Rate for any Interest Period requested by a Borrower, the Agent shall promptly notify the Loan Party Agent thereof by telephone or electronically and, if requested by the Loan Party Agent, shall confirm any telephonic notice in writing.

4.4                               Loan Party Agent.  Each Loan Party hereby designates Clean Harbors, Inc. (the “Loan Party Agent”) as its representative and agent for all purposes under the Loan Documents, including requests for Loans and Letters of Credit, designation of interest rates, delivery or receipt of communications, preparation and delivery of Borrowing Base and financial reports, receipt and payment of Obligations, requests for waivers, amendments or other accommodations, actions under the Loan Documents (including in respect of compliance with covenants), and all other dealings with the Agent, any Issuing Bank or any Lender.  The Loan Party Agent hereby accepts such appointment.  The Agent and the Lenders shall be entitled to rely upon, and shall be fully protected in relying upon, any notice or communication (including any Notice of Borrowing) delivered by the Loan Party Agent on behalf of any Loan Party.  The Agent and the Lenders may give any notice or communication with a Loan Party hereunder to the Loan Party Agent on behalf of such Loan Party.  Each of the Agent, Issuing Banks and the Lenders shall have the right, in its discretion, to deal exclusively with the Loan Party Agent for any or all purposes under the Loan Documents.  Each Loan Party agrees that any notice, election, communication, representation, agreement or undertaking made on its behalf by the Loan Party Agent shall be binding upon and enforceable against it.

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4.5                               One Obligation.  Without in any way limiting the Obligations of any Loan Party with respect to its Guarantee of the Loan Party Group Obligations of another Loan Party Group, the Loan Party Group Obligations owing by each Loan Party Group shall constitute one general obligation of the Loan Parties within such Loan Party Group and (unless otherwise expressly provided in any Loan Document) shall be secured by the Agent’s Lien upon all Collateral of each member of such Loan Party Group; provided, however, that each Credit Party shall be deemed to be a creditor of, and the holder of a separate claim against, each Loan Party to the extent of any Obligations owed by such Loan Party to such Credit Party.

4.6                               Effect of Termination.  On the effective date of any termination of any of the Commitments, all undertakings of the Loan Parties contained in the Loan Documents shall survive, and the Agent shall retain its Liens in the Collateral and all of its rights and remedies under the Loan Documents until Full Payment of the Obligations.  Notwithstanding Full Payment of the Obligations, the Agent shall not be required to terminate its Liens in any Collateral unless, with respect to any damages the Agent may incur as a result of the dishonor or return of Payment Items applied to Obligations, the Agent receives (a) a written agreement, executed by the Loan Party Agent and any Person whose advances are used in whole or in part to satisfy the Obligations, indemnifying the Agent and the Lenders from any such damages; or (b) such Cash Collateral as the Agent, in its reasonable discretion, deems necessary to protect against any such damages.  Sections 2.2, 2.3, 3.4, 3.6, 3.7, 3.9, 5.5, 5.9, 5.10, 12, 14.2 and this Section 4.6, and the obligation of each Loan Party and Lender with respect to each indemnity given by it in any Loan Document, shall survive Full Payment of the Obligations and any release relating to this credit facility.

SECTION 5.  PAYMENTS

5.1                               General Payment Provisions.  All payments of Obligations shall be made without offset, counterclaim or defense of any kind, free of (and without deduction for) any Taxes, and in immediately available funds, not later than 12:00 noon on the due date.  Any payment after such time shall be deemed made on the next Business Day.  If any payment under the Loan Documents shall be stated to be due on a day other than a Business Day, the due date shall be extended to the next Business Day and such extension of time shall be included in any computation of interest and fees.  Any payment of an Interest Period Loan prior to the end of its Interest Period shall be accompanied by all amounts due under Section 3.9.  Any prepayment of Loans to a Borrower shall be applied first to Floating Rate Loans to such Borrower and then to Interest Period Loans to such Borrower; provided, however, that as long as no Default or Event of Default exists, prepayments of Interest Period Loans may, at the option of the applicable Borrower and the Agent, be held by the Agent as Cash Collateral and applied to such Loans at the end of their Interest Periods.  All payments with respect to any U.S. Facility Obligations shall be made in Dollars and all payments with respect to any Canadian Facility Obligations shall be made in Canadian Dollars or, if any portion of such Canadian Facility Obligations is denominated in Dollars, then in Dollars.

5.2                               Repayment of Obligations.  All Canadian Facility Obligations shall be immediately due and payable in full on the Canadian Revolver Commitment Termination Date and all U.S. Facility Obligations shall be immediately due and payable in full on the U.S. Revolver Commitment Termination Date, in each case, unless payment of such Obligations is sooner required hereunder.  Revolver Loans may be prepaid from time to time, without penalty or premium, subject to, in the case of Interest Period Loans, the payment of costs set forth in

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Section 3.9.  If any Disposition includes the disposition of Accounts Collateral, then the Net Cash Proceeds equal to the greater of (a) the net book value of the applicable Accounts Collateral, or (b) the reduction in the Borrowing Base of the applicable Borrower upon giving effect to such Disposition, shall be applied to the Revolver Loans of such Borrower.  Notwithstanding anything herein to the contrary, if an Overadvance exists (including as the result of any Disposition but subject to the proviso below), the Borrower owing such Overadvance shall, on the sooner of the Agent’s demand or the first Business Day after such Borrower has knowledge thereof, repay the outstanding Loans in an amount sufficient to reduce the principal balance of the related Overadvance Loan to zero.

5.3                               [Reserved]

5.4                               Payment of Other Obligations.  Obligations shall be paid by the Borrowers as provided in the Loan Documents or, if no payment date is specified, on demand.

5.5                               Marshaling; Payments Set Aside.  None of the Agent or the Lenders shall be under any obligation to marshal any assets in favor of any Loan Party or against any Obligations.  If any payment by or on behalf of the Borrowers is made to the Agent, any Issuing Bank or any Lender, or the Agent, any Issuing Bank or any Lender exercises a right of setoff, and such payment or the proceeds of such setoff or any part thereof is subsequently invalidated, declared to be fraudulent or preferential, set aside or required (including pursuant to any settlement entered into by the Agent, such Issuing Bank or such Lender in its discretion) to be repaid to a Creditor Representative or any other Person, then to the extent of such recovery, the Obligation originally intended to be satisfied, and all Liens, rights and remedies relating thereto, shall be revived and continued in full force and effect as if such payment had not been made or such setoff had not occurred.

5.6                               Post-Default Allocation of Payments.

5.6.1  Allocation.  Notwithstanding anything in any Loan Document to the contrary, during an Event of Default, monies to be applied to the Obligations, whether arising from payments by or on behalf of any Loan Party, realization on Collateral, setoff or otherwise, shall be allocated as follows:

(a)                                 with respect to monies, payments, Property or Collateral of or from any U.S. Facility Loan Parties:

(i)                                     first, to all Obligations consisting of costs and expenses, including Extraordinary Expenses, owing to the Agent;

(ii)                                  second, to all amounts owing to the Agent on U.S. Swingline Loans;

(iii)                               third, to all amounts owing to U.S. Issuing Bank on U.S. LC Obligations (other than amounts owing pursuant to clause (b) of such definition);

(iv)                              fourth, to all U.S. Facility Obligations constituting fees (excluding amounts relating to Bank Products and Secured Hedging Obligations) owing by the U.S. Facility Loan Parties (exclusive of any such amounts owing by the Canadian Domiciled Loan Parties which are guaranteed by the U.S. Domiciled Loan Parties);

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(v)                                 fifth, to all U.S. Facility Obligations constituting interest (excluding amounts relating to Bank Products and Secured Hedging Obligations) owing by the U.S. Facility Loan Parties (exclusive of any such amounts owing by the Canadian Domiciled Loan Parties which are guaranteed by the U.S. Domiciled Loan Parties);

(vi)                              sixth, to provide Cash Collateral for outstanding U.S. Letters of Credit;

(vii)                           seventh, to all other U.S. Facility Obligations (exclusive of any such amounts owing by the Canadian Domiciled Loan Parties which are guaranteed by the U.S. Domiciled Loan Parties), other than (A) Bank Product Debt and (B) U.S. Secured Hedging Obligations to the extent the amount of U.S. Secured Hedging Obligations exceeds the U.S. Secured Hedging Reserves;

(viii)                        eighth, to Bank Product Debt of the U.S. Facility Loan Parties and U.S. Secured Hedging Obligations to the extent the amount of U.S. Secured Hedging Obligations exceeds the U.S. Secured Hedging Reserves (exclusive of any such amounts owing by the Canadian Domiciled Loan Parties which are guaranteed by the U.S. Domiciled Loan Parties);

(ix)                              ninth, to be applied in accordance with clause (b) below, to the extent there are insufficient funds for the Full Payment of all Obligations owing by the Canadian Domiciled Loan Parties; and

(x)                                 tenth, after Full Payment of all Obligations, the remainder to the Loan Party Agent for the benefit of the U.S. Domiciled Loan Parties or such other Person(s) as shall be legally entitled thereto.

(b)                                 with respect to monies, payments, Property or Collateral of or from any Canadian Domiciled Loan Parties, together with any allocations pursuant to subclause (ix) of clause (a) above:

(i)                                     first, to all Obligations consisting of costs and expenses, including Extraordinary Expenses, owing to the Agent, to the extent owing by any Canadian Domiciled Loan Party;

(ii)                                  second, to all amounts owing to the Agent (for the credit of Bank of America (Canada)) on Canadian Swingline Loans;

(iii)                               third, to all amounts owing to Canadian Issuing Bank on Canadian LC Obligations (other than amounts owing pursuant to clause (b) of such definition);

(iv)                              fourth, to all Canadian Facility Obligations constituting fees (excluding amounts relating to Bank Products and Secured Hedging Obligations);

(v)                                 fifth, to all Canadian Facility Obligations constituting interest (excluding amounts relating to Bank Products and Secured Hedging Obligations);

(vi)                              sixth, to provide Cash Collateral for outstanding Canadian Letters of Credit;

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(vii)                           seventh, to all other Canadian Facility Obligations, other than (A) Bank Product Debt and (B) Canadian Secured Hedging Obligations to the extent the amount of Canadian Secured Hedging Obligations exceeds the Canadian Secured Hedging Reserves;

(viii)                        eighth, to Bank Product Debt of the Canadian Domiciled Loan Parties and Canadian Secured Hedging Obligations to the extent the amount of Canadian Secured Hedging Obligations exceeds the Canadian Secured Hedging Reserves; and

(ix)                              ninth, after Full Payment of all Canadian Facility Obligations, the remainder to the Loan Party Agent for the benefit of the Canadian Domiciled Loan Parties or such other Person(s) as shall be legally entitled thereto.

Amounts shall be applied to each category of Obligations set forth above until Full Payment thereof and then to the next category.  If amounts are insufficient to satisfy a category, they shall be applied on a pro rata basis among the Obligations in the category.  Amounts distributed with respect to any Bank Product Debt and Secured Hedging Obligations shall be the actual Bank Product Debt and Secured Hedging Obligations as calculated by the methodology reported to the Agent for determining the amount due.  The Agent shall have no obligation to calculate the amount to be distributed with respect to any Bank Product Debt or Secured Hedging Obligations, but may rely upon written notice of the amount (setting forth a reasonably detailed calculation) from the Lender or Affiliate thereof providing the related Bank Product or party to the applicable Hedging Agreement.  In the absence of such notice, the Agent may assume the amount to be distributed is the amount with respect to such Bank Product Debt or Secured Hedging Obligation last reported to it.  The allocations set forth in this Section 5.6.1 are solely to determine the rights and priorities of the Agent and the Lenders as among themselves, and may be changed by agreement among them without the consent of any Loan Party.  This Section is not for the benefit of or enforceable by any Borrower or any other Loan Party.

5.6.2  Erroneous Application.  The Agent shall not be liable for any application of amounts made by it in good faith and, if any such application is subsequently determined to have been made in error, the sole recourse of any Lender or other Person to which such amount should have been made shall be to recover the amount from the Person that actually received it (and, if such amount was received by any Lender, such Lender hereby agrees to return it).

5.7                               Application of Payments.  During any Cash Trigger Period, the ledger balance in the main Dominion Account of each Borrower as of the end of a Business Day shall be applied to the Loan Party Group Obligations of such Borrower at the beginning of the next Business Day.  If, as a result of such application, a credit balance exists, the balance shall not accrue interest in favor of the Borrowers and shall be made available to the Borrowers of the applicable Borrower Group as long as no Default or Event of Default exists.  Each Borrower irrevocably waives the right to direct the application of any payments or Collateral proceeds, and agrees that the Agent shall have the continuing, exclusive right to apply and reapply same against the Obligations, in such manner as the Agent deems advisable.

5.8                               Account Stated.