DRAFT OF 11/4/98 SECOND AMENDMENT SECOND AMENDMENT (this "Amendment"), dated as of November 20, 1998, to the Amended and Restated Credit Agreement, dated as of April 3, 1998 (as the same may be amended, supplemented or otherwise modified, the "CREDIT AGREEMENT"), among SAFETY-KLEEN SERVICES, INC. (formerly known as LES, Inc.), a Delaware corporation (the "COMPANY"), SAFETY-KLEEN (CANADA) LTD. (formerly known as Laidlaw Environmental Services (Canada) Ltd.), a Canadian corporation and a wholly owned subsidiary of the Company (the "CANADIAN BORROWER"; together with the Company, the "BORROWERS"), the several banks and other financial institutions or entities from time to time parties thereto (the "LENDERS"), TORONTO DOMINION (TEXAS), INC., as general administrative agent (in such capacity, the "GENERAL ADMINISTRATIVE AGENT"), THE TORONTO-DOMINION BANK, as Canadian administrative agent (in such capacity, the "CANADIAN ADMINISTRATIVE AGENT"; together with the General Administrative Agent, the "ADMINISTRATIVE AGENTS"), TD SECURITIES (USA) INC., as advisor to the Borrowers and arranger of the commitments described in the Credit Agreement, THE BANK OF NOVA SCOTIA, NATIONSBANK, N.A., THE FIRST NATIONAL BANK OF CHICAGO and WACHOVIA BANK, N.A., as managing agents (each, in such capacity, a "MANAGING AGENT"), THE BANK OF NOVA SCOTIA and THE FIRST NATIONAL BANK OF CHICAGO, as co-documentation agent (each, in such capacity, a "CO-DOCUMENTATION AGENT"), and NATIONSBANK, N.A., as syndication agent (in such capacity, the "SYNDICATION AGENT"). W I T N E S S E T H : WHEREAS, the Borrowers have requested that the Administrative Agents and the Lenders agree to amend certain provisions of the Credit Agreement upon the terms and subject to the conditions set forth herein; and WHEREAS, the Administrative Agents and the Lenders have agreed to such waivers and amendments only upon the terms and subject to the conditions set forth herein; NOW, THEREFORE, in consideration of the premises and the mutual covenants contained herein, the parties hereto hereby agree as follows: 1. DEFINED TERMS. Terms defined in the Credit Agreement are used in this Amendment with the meanings set forth in the Credit Agreement unless otherwise defined herein. 2. AMENDMENT OF SECTION 1.1 OF THE CREDIT AGREEMENT. Section 1.1 of the Credit Agreement is hereby amended by: (a) inserting the words "or Exhibit A-3" after the reference to "Exhibit A-1" as it appears in the first line of the definition of "Draft"; 2 (b) inserting at the end of the definition of "Reference Discount Rate" the following sentence: "With respect to any Canadian Lender that is not a Schedule 1 Canadian Lender or a Schedule 2 Canadian Lender on the date on which a Draft is requested to be accepted by such Lender, the "Reference Discount Rate" shall be deemed to be the rate described in clause (b) above." (c) inserting the following definition in correct alphabetical order: "ELGIN OFFICE BUILDING DISPOSITION": the sale by the Company or its Subsidiary of the office building located at 1000 North Randall Road, Elgin, Illinois and the subsequent lease by Company or its Subsidiary of all or a portion of such facility from the purchaser thereof to meet the Company's local office space requirements. 3. AMENDMENT OF SECTION 2.5 OF THE CREDIT AGREEMENT. Section 2.5 of the Credit Agreement is hereby amended by inserting before the period at the end of the first sentence thereof the following: ", which notice shall be accompanied by a certificate of the chief financial officer of the Company certifying that such requested borrowings under the Revolving Credit Commitments, at the time made, will not violate the provisions of the indenture governing the High Yield Notes (including, without limitation, Section 10.10 of such indenture)". 4. AMENDMENT OF SECTION 6 OF THE CREDIT AGREEMENT. (a) Section 6.3(f) of the Credit Agreement is hereby amended by deleting "Section 6.2(c)," as it appears in the second line of such section; and (b) Section 6.12(b)(ii) of the Credit Agreement is hereby amended by deleting "6.11(b)(i)" as it appears in the third line of such section and inserting in lieu thereof "6.12(b)(i)". 5. AMENDMENT OF SECTION 10 OF THE CREDIT AGREEMENT. (a) Section 10.6 of the Credit Agreement is hereby amended by deleting clause (b) of such section in its entirety and inserting in lieu thereof the following: "(b) the sale or other Disposition of any property (other than inventory), PROVIDED that the aggregate book value of all assets so sold or disposed of (other than the Elgin Office Building Disposition) in any period of twelve consecutive months shall not exceed 5% of consolidated total assets of the Company and its Subsidiaries as at the beginning of such twelve-month period;" (b) Section 10.11 of the Credit Agreement is hereby amended by deleting such section in its entirety and inserting in lieu thereof the following: 3 "10.11 LIMITATION ON SALES AND LEASEBACKS. Enter into any arrangement with any Person providing for the leasing by the Company or any Subsidiary of real or personal property which has been or is to be sold or transferred by the Company or such Subsidiary to such Person or to any other Person to whom funds have been or are to be advanced by such Person on the security of such property or rental obligations of the Company or such Subsidiary, except for any such arrangements with respect to (i) the Elgin Office Building Disposition, (ii) the sale and leaseback of any transportation equipment in the ordinary course of business, provided that such sale and leaseback transactions occur within six months of the purchase of such transportation equipment (or, with respect to such transportation equipment purchased prior to February 15, 1998, within six months of the date hereof) and, without duplication, (iii) real or personal property with respect to which the aggregate sales price shall not exceed $25,000,000." 6. NEW EXHIBIT TO THE CREDIT AGREEMENT. The Credit Agreement is hereby amended by attaching thereto, in correct order, a new "Exhibit A-3" in the form attached hereto as Annex A. 7. CONDITIONS TO EFFECTIVENESS. This Amendment shall become effective (the actual date of such effectiveness, the "AMENDMENT EFFECTIVE DATE") as of the date first above written when counterparts hereof shall have been duly executed and delivered by each of the Borrowers and the Required Lenders and acknowledged by each of the Grantors (as defined in the Guarantee and Collateral Agreement). 8. BORROWER REPRESENTATIONS. Each of the Borrowers represents and warrants that: (a) this Amendment has been duly authorized, executed and delivered by each of the Borrowers; (b) each of this Amendment, and the Credit Agreement as amended by this Amendment, constitutes the legal, valid and binding obligation of each of the Borrowers; (c) each of the representations and warranties set forth in Section 7 of the Credit Agreement are true and correct as of the Amendment Effective Date; provided that references in the Credit Agreement to this "Agreement" shall be deemed references to the Credit Agreement as amended to date and by this Amendment; and (d) after giving effect to this Amendment, there does not exist any Default or Event of Default. 9. CONTINUING EFFECTS. Except as expressly amended hereby, the Credit Agreement shall continue to be and shall remain in full force and effect in accordance with its terms. 10. EXPENSES. The Company agrees to pay and reimburse the General Administrative Agent for all of its out-of-pocket costs and expenses incurred in 4 connection with the negotiation, preparation, execution, and delivery of this Amendment, including the reasonable fees and expenses of counsel to such Agent. 11. COUNTERPARTS. This Amendment may be executed on any number of separate counterparts and all of said counterparts taken together shall be deemed to constitute one and the same instrument. 12. GOVERNING LAW. THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK. 5 IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed and delivered by their proper and duly authorized officers as of the day and year first above written. SAFETY-KLEEN SERVICES, INC. (formerly known as LES, Inc.) By: /S/ Paul Humphreys --------------------------------------- Title: Senior Vice President & CFO SAFETY-KLEEN (CANADA) LTD. (formerly known as Laidlaw Environmental Services (Canada) Ltd.) By: /S/ Paul Humphreys --------------------------------------- Title: Senior Vice President & CFO 6 TORONTO DOMINION (TEXAS), INC., as General Administrative Agent and Lender By: /S/ Jano Mott --------------------------------------- Title: Vice President THE TORONTO-DOMINION BANK, as Canadian Administrative Agent By: --------------------------------------- Title: TD SECURITIES (USA) INC., as Arranger By: --------------------------------------- Title: THE TORONTO-DOMINION BANK, as a Lender By: --------------------------------------- Title: By: --------------------------------------- Title: THE BANK OF NOVA SCOTIA, as Managing Agent, Co-Documentation Agent and Lender By: /S/ William E. Zarrett --------------------------------------- Title: Senior Relationship Manager THE FIRST NATIONAL BANK OF CHICAGO, as Managing Agent, Co-Documentation Agent and Lender By: /S/ Gaye C. Plunkett --------------------------------------- Title: Vice President NATIONSBANK, N.A., as Syndication Agent, Managing Agent and Lender By: /S/ David Sachsenmajer --------------------------------------- Title: Vice President WACHOVIA BANK, N.A., as Managing Agent and Lender By: /S/ Donald E. Sellers --------------------------------------- Title: Vice President 7 THE CIT GROUP/BUSINESS CREDIT, INC. By: /S/ Dean Chakalos --------------------------------------- Title: Vice President GENERAL ELECTRIC CAPITAL CORPORATION By: /S/ Janet K. Williams --------------------------------------- Title: Duly Authorized Signatory COMERICA BANK By: /S/ Marian Enright --------------------------------------- Title: Vice President FLEET NATIONAL BANK By: /S/ Jeffrey Lynch --------------------------------------- Title: Senior Vice President ROYAL BANK OF CANADA By: /S/ Michael Korine --------------------------------------- Title: Senior Manager 8 COMPAGNIE FINANCIERE DE CIC ET DE L'UNION EUROPEENNE By: /S/ Sean Mounier --------------------------------------- Title: First Vice President By: --------------------------------------- Title: MARINE MIDLAND BANK By: /S/ Gina Sidorsky --------------------------------------- Title: Authorized Signatory THE LONG-TERM CREDIT BANK OF JAPAN, LTD. By: /S/ A. Haruyama --------------------------------------- Title: Head of Southeast Region Atlanta CEO MITSUBISHI TRUST AND BANKING CORPORATION By: /S/ Toshihiro Hayashi --------------------------------------- Title: Senior Vice President SANWA BUSINESS CREDIT CORPORATION By: /S/ Stan Kaminski --------------------------------------- Title: Vice President 9 SOCIETE GENERALE By: /S/ Ralph Saheb --------------------------------------- Title: Vice President SOUTHERN PACIFIC BANK By: /S/ Cheryl A. Wasilewski -------------------------------------- Title: Vice President CREDIT LYONNAIS ATLANTA AGENCY By: /S/ David M. Cawrse --------------------------------------- Title: First Vice President COOPERATIEVE CENTRALE RAIFEISEN- BOERENLEENBANK B.A., "RABOBANK NEDERLAND" NEW YORK BRANCH By: /S/ Ian Reece --------------------------------------- Title: Senior Credit Officer By: /S/ Alistair Turnbum --------------------------------------- Title: Vice President COMMERCIAL LOAN FUNDING TRUST I By: /S/ Michele Swanson --------------------------------------- Title: Authorized Signatory FREMONT FINANCIAL CORPORATION By: /S/ Maria Chachere --------------------------------------- Title: Vice President 10 THE SAKURA BANK, LTD. By: --------------------------------------- Title: STAR BANK, NATIONAL ASSOCIATION By: /S/ Mark A. Whitson --------------------------------------- Title: Vice President BANK OF HAWAII By: /S/ Donna R. Parker --------------------------------------- Title: Vice President CITIBANK N.A. By: /S/ David Harris --------------------------------------- Title: Vice President THE DAI-ICHI KANGYO BANK, LTD. By: /S/ Robert Gallagher --------------------------------------- Title: Vice President SKANDINAVISKA ENSKILDA BANKEN AB (PUBL.) NY BRANCH By: /S/ Philip Montemurro --------------------------------------- Title: Vice President By: /S/ Sverker Johansson --------------------------------------- Title: Vice President 11 THE SUMITOMO BANK, LIMITED By: --------------------------------------- Title: THE SUMITOMO TRUST & BANKING CO., LTD., NEW YORK BRANCH By: /S/ Stephen Stratico --------------------------------------- Title: Vice President NATIONAL CITY BANK By: /S/ Lisa B. Lisi --------------------------------------- Title: Vice President BHF-BANK AKTIENGESELLSCHAFT By: /S/ Hans J. Scholz --------------------------------------- Title: Assistant Vice President By: /S/ Thomas Scifo --------------------------------------- Title: Assistant Vice President THE FUJI BANK, LTD., NEW YORK BRANCH By: --------------------------------------- Title: 12 CAISSE DE DEPOT ET PLACEMENT DU QUEBEC By: /S/ Normand Provost --------------------------------------- Title: Coordinating Vice President By: /S/ Michel Nadeau --------------------------------------- Title: Senior Vice President KZH CORP III By: --------------------------------------- Title: WEBSTER BANK By: /S/ Juliana B. Dalton --------------------------------------- Title: Vice President BANQUE WORMS CAPITAL CORPORATION By: /S/ Constace DeKlerck --------------------------------------- Title: Vice President By: /S/ Frederic Gamet --------------------------------------- Title: Senior Vice President IMPERIAL BANK By: /S/ Mark Campbell --------------------------------------- Title: Senior Vice President THE PRUDENTIAL INSURANCE COMPANY OF AMERICA By: /S/ Thomas J. Cecka --------------------------------------- Title: Vice President 13 GPSF SECURITIES, INC. By: --------------------------------------- Title: KZH CNC LLC By: /S/ Michael M. Wong --------------------------------------- Title: Authorized Agent SUMMIT BANK By: /S/ Seiji P. Nakamura --------------------------------------- Title: Assistant Vice President METROPOLITAN LIFE INSURANCE COMPANY By: /S/ James R. Dingler --------------------------------------- Title: Director FIRSTRUST BANK By: /S/ Kent Nelson --------------------------------------- Title: Vice President BANCO ESPIRITO SANTO By: /S/ Andrew M. Orsen --------------------------------------- Title: Vice President By: /S/ Terry R. Hull --------------------------------------- Title: Senior Vice President 14 CITY NATIONAL BANK By: /S/ Scott Kelly --------------------------------------- Title: Vice President VAN KAMPEN AMERICAN CAPITAL PRIME RATE INCOME TRUST By: /S/ Jeffrey W. Maillet --------------------------------------- Title: Senior Vice President & Director OAK HILL SECURITIES FUND, L.P. BY: OAK HILL SECURITIES GENPAR, L.P., its General Partner BY: OAK HILL SECURITIES MGP, INC., its General Partner By: /S/ Scott D. Krase --------------------------------------- Title: Vice President SENIOR DEBT PORTFOLIO BY: BOSTON MANAGEMENT AND RESEARCH, as Investment Advisor By: /S/ Payson F. Swaffield ------------------------------------- Title: Vice President 15 VAN KAMPEN CLO I, LIMITED BY: VAN KAMPEN AMERICAN CAPITAL MANAGEMENT INC., as Collateral Manager By: /S/ Jeffrey W. Maillet ------------------------------------- Title: Senior Vice President & Director OCTAGON LOAN TRUST BY: OCTAGON CREDIT INVESTORS, as Manager By: /S/ Joyce C. Delucca ------------------------------------- Title: Managing Director THE CHASE MANHATTAN BANK By: --------------------------------------- Title: AG CAPITAL FUNDING PARTNERS, L.P. BY: ANGELO, GORDON & CO., L.P., as Investment Advisor By: /S/ Jeffrey H. Aronson ------------------------------------- Title: Managing Director FIRST DOMINION FUNDING I By: ------------------------------------- Title: 16 JACKSON NATIONAL LIFE INSURANCE COMPANY BY: PPM AMERICA, INC., as attorney in fact on behalf of Jackson National Life Insurance Company By: /S/ Michael DiRe ------------------------------------- Title: Managing Director ML CBO IV (CAYMAN) LTD. BY: HIGHLAND CAPITAL MANAGEMENT, L.P. COMPANY, as Collateral Manager By: /S/ James Dondero, CFA, CP --------------------------------------- Title: President WESTERN NATIONAL LIFE INSURANCE COMPANY By: --------------------------------------- Title: KZH CRESCENT LLC By: --------------------------------------- Title: KZH CRESCENT-2 LLC By: --------------------------------------- Title: 17 CRESCENT/MACH I PARTNERS, L.P. BY: TCW ASSET MANAGEMENT COMPANY, as its Investment Manager By: ------------------------------------- Title: PAM CAPITAL FUNDING LP BY: HIGHLAND CAPITAL MANAGEMENT, as Collateral Manager By: /S/ James Dondero, CFA, CPA ------------------------------------- Title: President KZH CYPRESSTREE-1 LLC By: /S/ Michael M. Wong --------------------------------------- Title: Authorized Agent PAMCO CAYMAN LTD. BY: HIGHLAND CAPITAL MANAGEMENT, as Collateral Manager --------------------------------------- By: /S/ James Dondero, CFA, CPA -------------------------------------- Title: President ARCHIMEDES FUNDING, LLC BY: ING CAPITAL ADVISORS, INC. as Collateral Manager By: /S/ Michael D. Hatley -------------------------------------- Title: Senior Vice President 18 ING HIGH INCOME PRINCIPAL PRESERVATION FUND HOLDINGS, LDC BY: ING CAPITAL ADVISORS, INC., as Investment Advisor By:------------------------------------- Title: Vice President & Portfolio Manager KZH III LLC By: /S/ Michael M. Wong --------------------------------------- Title: Authorized Agent KZH ING-1 LLC By: S/ Michael M. Wong --------------------------------------- Title: Authorized Agent KZH PAMCO LLC By: /S/ Virginia Conway --------------------------------------- Title: Authorized Agent PACIFICA PARTNERS I, L.P. BY: IMPERIAL CREDIT ASSET MANAGEMENT, as its Investment Manager By: /S/ Michael J. Bacevich ------------------------------------- Title: Senior Vice President 19 KZH RIVERSIDE LLC By: /S/ Michael M. Wong --------------------------------------- Title: Authorized Agent PILGRIM AMERICAN HIGH INCOME INVESTMENTS LTD. BY: PILGRIM AMERICA INVESTMENTS, INC., as its Investment Manager By: /S/ Michel Prince, CFA ------------------------------------- Title: Vice President KZH ING-2 LLC By: /S/ Michael Wong --------------------------------------- Title: Authorized Agent PILGRIM AMERICA PRIME RATE TRUST BY: PILGRIM AMERICA INVESTMENTS, INC., as its Investment Manager By: /S/ Michel Prince, CFA ------------------------------------- Title: Vice President INDOSUEZ CAPITAL FUNDING IIA, LIMITED BY: INDOSUEZ CAPITAL LUXEMBOURG, as Collateral Manager By: /S/ Francoise Berthelot ------------------------------------- Title: Authorized Signatory 20 DELANO COMPANY BY: PACIFIC INVESTMENT MANAGEMENT COMPANY, as its Investment Advisor --------------------------------------- By: PIMCO MANAGEMENT INC., a General Partner By: /S/ Bradley W. Paulson ------------------------------------- Title: Vice President KZH CRESCENT-3 LLC By: --------------------------------------- Title: BALANCED HIGH-YIELD FUND I LTD. BY: BHF-BANK AKTIENGESELLSCHAFT acting through its New York Branch, as its attorney-in-fact By: /S/ Hans J. Scholz ------------------------------------- Title: Assistant Vice President By: /S/ Thomas Scifo ------------------------------------- Title: Assistant Vice President GENERAL MOTORS CASH MANAGEMENT MASTER TRUST By: --------------------------------------- Title: 21 INDOSUEZ CAPITAL FUNDING III, LIMITED BY: INDOSUEZ CAPITAL LUXEMBOURG, as Collateral Manager By: /S/ Francoise Berthelot ------------------------------------- Title: Authorized Signatory KZH SOLEIL LLC By: --------------------------------------- Title: ML CLO XII PILGRIM AMERICA (CAYMAN) LTD. BY: PILGRIM AMERICA INVESTMENTS, INC., as its Investment Manager By: /S/ Michel Prince, CFA ------------------------------------- Title: Vice President ML CLO XV PILGRIM AMERICA (CAYMAN) LTD. BY: PILGRIM AMERICA INVESTMENTS, INC., as its Investment Manager By: /S/ Michel Prince, CFA ------------------------------------- Title: Vice President MOUNTAIN CLO TRUST By: --------------------------------------- Title: 22 CERES FINANCE LTD. By: /S/ David Egglishaw --------------------------------------- Title: Director GENERAL MOTORS BENEFITS TRUST BY: STATE STREET BANK AND TRUST COMPANY, as Trustee for General Motors Benefits Trust By: ------------------------------------- Title: BALANCED HIGH-YIELD FUND II LTD. BY: BHF-BANK AKTIENGESELLSCHAFT acting through its New York Branch, as its attorney-in-fact By: ------------------------------------- Title: By: ------------------------------------- Title: CAPTIVA III FINANCE, LTD. as advised by, PACIFIC INVESTMENT MANAGEMENT COMPANY By: /s/Jennifer Dilbert --------------------------------------- Title: Director 23 EATON VANCE SENIOR INCOME TRUST BY: EATON VANCE MANAGEMENT, as Investment Advisor By: /S/ Payson F. Swaffield ------------------------------------- Title: Vice President VAN KAMPEN CLO II, LIMITED BY: VAN KAMPEN AMERICAN CAPITAL MANAGEMENT INC., as Collateral Manager By: /S/ Jeffrey W. Maillet ------------------------------------- Title: Senior Vice President & Director CREDIT SUISSE FIRST BOSTON By: --------------------------------------- Title: KZH LANGDALE LLC By: /S/ Michael M. Wong --------------------------------------- Title: Authorized Agent CYPRESSTREE INVESTMENT MANAGEMENT COMPANY, INC. AS: Attorney-in Fact and on behalf of FIRST ALLMERICA FINANCIAL LIFE INSURANCE COMPANY, as Portfolio Manager By: /S/ Timothy M. Barns --------------------------------------- Title: Managing Director 24 ARCHIMEDES FUNDING II, LTD. BY: ING CAPITAL ADVISORS, INC., as Collateral Manager By: /S/ Michael D. Hatley --------------------------------------- Title: Senior Vice President ALLIANCE CAPITAL FUNDING, L.L.C. BY: ALLIANCE CAPITAL MANAGEMENT L.P., as Manager on behalf of ALLIANCE CAPITAL FUNDING, L.L.C. BY: ALLIANCE CAPITAL MANAGEMENT CORPORATION, General Partner of Alliance Capital Management L.P. By: ------------------------------------- Title: FIRST ALLAMERICA FINANCIAL LIFE INSURANCE COMPANY By: --------------------------------------- Title: MERRILL LYNCH, PIERCE FENNER & SMITH INCORPORATED By: --------------------------------------- Title: 25 CAPTIVA II FINANCE LTD. By: /S/ David Egglishaw --------------------------------------- Title: Director STRATA FUNDING LTD. By: /S/ David Egglishaw --------------------------------------- Title: Director VAN KAMPEN AMERICAN CAPITAL SENIOR FLOATING RATE FUND By: /S/ Jeffrey W. Maillet --------------------------------------- Title: Senior Vice President & Director CONTINENTAL ASSURANCE COMPANY SEPARATE ACCOUNT (E) BY: TCW ASSET MANAGEMENT COMPANY, as Attorney-in-Fact By: ------------------------------------- Title: By: ------------------------------------- Title: AMARA-2 FINANCE LTD. By: /S/ Andrew Wignall --------------------------------------- Title: Director 26 ROYALTON COMPANY BY: PACIFIC INVESTMENT MANAGEMENT COMPANY, as its Investment Advisor By: PIMCO MANAGEMENT INC., a General Partner By: /S/ Bradley W. Paulson ------------------------------------- Title: Vice President FLOATING RATE PORTFOLIO BY: INVESCO SENIOR SECURED MANAGEMENT INC., as attorney in fact By: /S/ Joseph Rotondo ------------------------------------- Title: Authorized Signatory AMARA-1 FINANCE LTD. By: /S/ Andrew Wignall --------------------------------------- Title: Director KISLAK NATIONAL BANK BY: ING CAPITAL ADVISORS, INC., as Investment Advisor By: /S/ Michael D. Hatley ------------------------------------- Title: Senior Vice President 27 DEEPROCK & COMPANY BY: EATON VANCE MANAGEMENT, as Investment Advisor By: /S/ Payson F. Swaffield ------------------------------------- Title: Vice President ACKNOWLEDGMENT AND CONSENT The undersigned does hereby acknowledge and consent to the foregoing Amendment. The undersigned does hereby confirm and agree that, after giving effect to such Amendment, the Guarantee and Collateral Agreement and other Collateral Documents in favor of the General Administrative Agent or the Canadian Administrative Agent, as the case may be, to which it is a party are and shall continue to be in full force and effect and are hereby confirmed and ratified in all respects. SAFETY-KLEEN SERVICES, INC. (formerly known as LES, Inc.) LAIDLAW ENVIRONMENTAL SERVICES, INC. LES MERGER, INC. SAFETY-KLEEN (PECATONICA), INC. (formerly known as Laidlaw Environmental Services of Illinois, Inc.) GSX CHEMICAL SERVICES OF OHIO, INC. SAFETY-KLEEN (BDT), INC. (formerly known as Laidlaw Environmental Services (BDT), Inc.) Inc.) SAFETY-KLEEN (FS), INC. (formerly known as Laidlaw Environmental Services (FS), Inc.) SAFETY-KLEEN (GS), INC. (formerly known as Laidlaw Environmental Services (GS), Inc.) SAFETY-KLEEN (CHATTANOOGA), INC. (formerly known as Laidlaw Environmental Services of Chattanooga, Inc.) SAFETY-KLEEN (WHITE CASTLE), INC. (formerly known as Laidlaw Environmental Services of White Castle, Inc.) SAFETY-KLEEN (CROWLEY), INC. (formerly known as Laidlaw Environmental Services (Recovery), Inc.) SAFETY-KLEEN (TS), INC. (formerly known as Laidlaw Environmental Services (TS), Inc.) SAFETY-KLEEN (WESTMORLAND), INC. (formerly known as Laidlaw Environmental Services (Imperial Valley), Inc.) SAFETY-KLEEN (BUTTONWILLOW), INC. (formerly known as Laidlaw Environmental Services (Lokern), Inc.) SAFETY-KLEEN (CALIFORNIA), INC. (formerly known as Laidlaw Environmental of California, Inc.) SAFETY-KLEEN (PINEWOOD), INC.(formerly known as Laidlaw Environmental Services of South Carolina, Inc.) SAFETY-KLEEN (NE), INC.(formerly known as Laidlaw Environmental Services (North East), Inc.) 2 SAFETY-KLEEN (LAPORTE), INC. (formerly known as Laidlaw Environmental Services (TES), Inc.) SAFETY-KLEEN CHEMICAL SERVICES, INC. (formerly known as Laidlaw Environmental Services, Inc.) SAFETY-KLEEN (ROEBUCK), INC.(formerly known as Laidlaw Environmental Services (TOC), Inc.) SAFETY-KLEEN (TG), INC. (formerly known as Laidlaw Environmental Services (TG), Inc.) SAFETY-KLEEN (ALTAIR), INC. (formerly known as Laidlaw Environmental Services (Altair), Inc.) SAFETY-KLEEN (WT), INC. (formerly known as Laidlaw Environmental Services (WT), Inc.) SAFETY-KLEEN (BARTOW), INC. (formerly known as Laidlaw Environmental Services of Bartow, Inc.) SAFETY-KLEEN (COLFAX), INC. (formerly known as Laidlaw Environmental Services (Thermal Treatment), Inc.) LEMC, INC. SAFETY-KLEEN OSCO HOLDINGS, INC. (formerly known as Laidlaw OSCO Holdings, Inc.) SAFETY-KLEEN (NASHVILLE), INC. (formerly known as Laidlaw Environmental Services of Nashville, Inc.) SAFETY-KLEEN (CLIVE), INC. (formerly known as Laidlaw Environmental Services (Clive), Inc.) SAFETY-KLEEN (LONE AND GRASSY MOUNTAIN), INC. (formerly known as Laidlaw Environmental Services (Lone and Grassy Mountain), Inc.) SAFETY-KLEEN (TULSA), INC. (formerly known as Laidlaw Environmental Services (Tulsa), Inc.) SAFETY-KLEEN (SAN ANTONIO), INC. (formerly known as Laidlaw Environmental Services (San Antonio), Inc.) SAFETY-KLEEN (WICHITA), INC. (formerly known as Laidlaw Environmental Services (Wichita), Inc.) SAFETY-KLEEN (DELAWARE), INC. (formerly 3 known as Laidlaw Environmental Services of Delaware, Inc.) USPCI, INC. OF GEORGIA SAFETY-KLEEN (SAN JOSE), INC. (formerly known as Laidlaw Environmental Services (San Jose), Inc.) SAFETY-KLEEN (SAWYER), INC. (formerly known as Laidlaw Environmental Services (Sawyer), Inc.) CHEMCLEAR, INC. OF LOS ANGELES SAFETY-KLEEN (ROSEMOUNT), INC. (formerly known as Laidlaw Environmental Services (Rosemount), Inc.) SAFETY-KLEEN HOLDING'S, INC. (formerly known as LES Holding's, Inc.) SAFETY-KLEEN (PPM), INC. (formerly known as Laidlaw Environmental Services (Tucker), Inc.) NINTH STREET PROPERTIES, INC. SAFETY-KLEEN (MT. PLEASANT), INC. (formerly known as Laidlaw Environmental Services (Mt. Pleasant), Inc.) SAFETY-KLEEN (DEER TRAIL), INC. (formerly known as Laidlaw Environmental Services (Deer Trail), Inc.) SAFETY-KLEEN (MINNEAPOLIS), INC. (formerly known as Laidlaw Environmental Services (Minneapolis), Inc.) SAFETY-KLEEN (LOS ANGELES), INC. (formerly known as Laidlaw Environmental Services (Los Angeles), Inc.) SAFETY-KLEEN (BATON ROUGE), INC. (formerly known as Laidlaw Environmental Services (Baton Rouge), Inc.) SAFETY-KLEEN (PLAQUEMINE), INC. (formerly known as Laidlaw Environmental Services (Plaquemine), Inc.) SAFETY-KLEEN (BRIDGEPORT), INC. (formerly known as Laidlaw Environmental Services (Bridgeport), Inc.) SAFETY-KLEEN (DEER PARK), INC. (formerly known as Laidlaw Environmental Services (Deer Park), Inc.) SAFETY-KLEEN (TIPTON), INC. (formerly known as Laidlaw Environmental Services (Tipton), Inc.) 4 SAFETY-KLEEN (ENCOTEC), INC. (formerly known as Laidlaw Environmental, Inc.) SAFETY-KLEEN (SUSSEX), INC. (formerly known as Laidlaw Environmental Services (Sussex), Inc.) SAFETY-KLEEN (GLOUCESTER), INC. (formerly known as Laidlaw Environmental Services (Gloucester), Inc.) SAFETY-KLEEN (CUSTOM TRANSPORT), INC. (formerly known as Laidlaw Environmental Services (Custom Transport), Inc.) SAFETY-KLEEN (ARAGONITE), INC. (formerly known as Laidlaw Environmental Services (Aragonite), Inc.) SAFETY-KLEEN (PUERTO RICO), INC. (formerly known as Laidlaw Environmental Services (Puerto Rico), Inc.) SAFETY-KLEEN SYSTEMS, INC. (formerly known as Safety-Kleen Corp.) DIRT MAGNET, INC. THE MIDWAY GAS & OIL CO. ELGINT CORP. SAFETY-KLEEN ENVIROSYSTEMS COMPANY SAFETY-KLEEN ENVIROSYSTEMS COMPANY OF PUERTO RICO, INC. PETROCON, INC. PHILLIPS ACQUISITION CORP. SAFETY-KLEEN AVIATION, INC. SK INSURANCE COMPANY SK REAL ESTATE, INC. SAFETY-KLEEN INTERNATIONAL, INC. SAFETY-KLEEN OIL RECOVERY CO. SAFETY-KLEEN OIL SERVICES, INC. 3E COMPANY ENVIRONMENTAL, ECOLOGICAL AND ENGINEERING THE SOLVENTS RECOVERY SERVICE OF NEW JERSEY, INC. SAFETY-KLEEN (EUROPE), INC. By: /s/Henry H. Taylor ------------------------------------- Name: Henry H. Taylor Title: Secretary ANNEX A EXHIBIT A-3 ----------------------- BANKERS' ACCEPTANCE No. BA ----------------------- THIS IS A DEPOSITORY BILL SUBJECT TO THE DEPOSITORY BILLS AND NOTES ACT To Due Date --------------------------------- --------------------- ------------- BANK - ------------------------------------- ADDRESS ACCEPTED FOR VALUE RECEIVED PAY TO CDS & CO SUM OF $ - ------------------------------------- ----------------------------------- PAYABLE AT ------------------------- Dollars $ THIS IS A DEPOSITORY BILL SUBJECT TO THE DEPOSITORY BILLS AND NOTES ACT VALUE RECEIVED, AND CHARGE TO THE ACCOUNT OF -------------------------------------- Per: - ------------------------------------- -------------------------------- AUTHORIZED SIGNATURE Per: - ------------------------------------- -------------------------------- AUTHORIZED SIGNATURE