1 Exhibit (4)(c) ESCROW AGREEMENT ESCROW AGREEMENT, dated as of May 17, 1999 (this "Agreement"), among Safety-Kleen Corp. (formerly known as Laidlaw Environmental Services, Inc.), a Delaware corporation (the "Company"), the Bank of Nova Scotia Trust...Escrow Agreement • July 12th, 1999 • Safety Kleen Corp/ • Hazardous waste management • New York
1 Exhibit (4)(f) THIS FIRST SUPPLEMENTAL INDENTURE, effective as of November 15, 1998, among Safety-Kleen Services, Inc. (formerly LES, Inc.), a Delaware corporation (the "Company"), Safety-Kleen Corp. (formerly Laidlaw Environmental Services, Inc.),...First Supplemental Indenture • July 12th, 1999 • Safety Kleen Corp/ • Hazardous waste management • New York
WAIVER AND THIRD AMENDMENTCredit Agreement • July 12th, 1999 • Safety Kleen Corp/ • Hazardous waste management • New York
1 Exhibit (4)(a) REGISTRATION RIGHTS AGREEMENT REGISTRATION RIGHTS AGREEMENT (this "Agreement"), dated as of May 17, 1999, among Safety-Kleen Corp. (formerly known as Laidlaw Environmental Services, Inc.), a Delaware corporation (the "Company"), and...Registration Rights Agreement • July 12th, 1999 • Safety Kleen Corp/ • Hazardous waste management • New York
IndentureIndenture • July 12th, 1999 • Safety Kleen Corp/ • Hazardous waste management • New York
ARTICLE ISecurities Purchase Agreement • July 12th, 1999 • Safety Kleen Corp/ • Hazardous waste management • Delaware
2 3 SECTION 5. Release of Amounts. So long as the Securities have not become subject to Special Mandatory Redemption or an Acceleration Event, a Remedies Trigger Event or a Change of Control has not occurred, in each case as contemplated by Section...Collateral Account Pledge and Security Agreement • July 12th, 1999 • Safety Kleen Corp/ • Hazardous waste management • New York
