Amendment No. 3 to Amended and Restated Credit Agreement, dated as of March 15, 2004, among Stericycle, Inc., as the borrower, certain subsidiaries of Stericycle, Inc. as guarantors, various financial institutions and other persons from time to time parties as the lenders, and Bank of America, N.A., as the administrative agent

Stericycle, Inc.

THIS AMENDMENT NO. 3 TO AMENDED AND RESTATED CREDIT AGREEMENT (this "Agreement") is being executed and delivered as of March 15, 2004 by and among Stericycle, Inc., a Delaware corporation (the "Borrower"), each of the Subsidiary Guarantors named as signatories hereto, the financial institutions from time to time party to the Credit Agreement referred to and defined below (collectively, the "Lenders") and Bank of America, N.A., as representative of the Lenders (in such capacity, the "Administrative Agent") and as issuer of letters of credit (in such capacity, the "Issuer"). Undefined capitalized terms used herein shall have the meanings ascribed to such terms in such Credit Agreement as defined below.

W I T N E S S E T H:

WHEREAS, the Borrower, the Lenders, the Issuer, the Administrative Agent, Credit Suisse First Boston, as the Co-Syndication Agent, UBS Warburg, LLC, as the Co-Syndication Agent, and Fleet National Bank, as the Documentation Agent, have entered into that certain Amended and Restated Credit Agreement dated as of October 5, 2001, as amended by Amendment No. 1 to Amended and Restated Credit Agreement dated as of June 28, 2002 and Amendment No. 2 to Amended and Restated Credit Agreement dated as of January 27, 2003 (as otherwise modified, the "Credit Agreement"), pursuant to which, among other things, the Lenders have agreed to provide, subject to the terms and conditions contained therein, certain loans to the Borrower; and

WHEREAS, the Borrower has requested that the Administrative Agent, the Issuer and the Required Lenders amend the Credit Agreement to increase the "Letter of Credit Commitment Amount" from $20,000,000 to $30,000,000 and, subject to the terms and conditions of this Agreement, the Administrative Agent, the Issuer and the Required Lenders hereby agree to such amendment.

NOW, THEREFORE, in consideration of the foregoing premises, the terms and conditions stated herein and other valuable consideration, the receipt and sufficiency of which are hereby acknowledged by the Borrower, the Subsidiary Guarantors, the Issuer, the Required Lenders and the Administrative Agent, such parties hereby agree as follows:

1. Amendment. Subject to the satisfaction of the condition precedent set forth in Paragraph 2 of this Agreement, Section 1.1 of the Credit Agreement is hereby amended to delete the reference to the dollar amount "$20,000,000" set forth in the definition of "Letter of Credit Commitment Amount" and to replace such dollar amount with "$30,000,000".

2. Effectiveness of this Agreement; Condition Precedent. Paragraph 1 of this Agreement shall be deemed to have become effective as of the date of this Agreement, but such effectiveness shall be expressly conditioned upon the Administrative Agent's receipt of an originally-executed counterpart of this Agreement executed and delivered by duly authorized officers of the Borrower, the Issuer, the Subsidiary Guarantors and the Required Lenders.

3. Representations, Warranties and Covenants.

4. Reaffirmation, Ratification and Acknowledgment; Reservation. The Borrower and each Subsidiary Guarantor hereby (a) ratifies and reaffirms all of its payment and performance obligations, contingent or otherwise, and each grant of security interests and liens in favor of the Administrative Agent on behalf of the Lenders, under each Loan Document to which it is a party, (b) agrees and acknowledges that such ratification and reaffirmation is not a condition to the continued effectiveness of such Loan Documents, and (c) agrees that neither such ratification and reaffirmation, nor the Administrative Agent's, or any Lender's solicitation of such ratification and reaffirmation, constitutes a course of dealing giving rise to any obligation or condition requiring a similar or any other ratification or reaffirmation from the Borrower or such Subsidiary Guarantors with respect to any subsequent modifications to the Credit Agreement or the other Loan Documents. The Credit Agreement is in all respects ratified and confirmed. Each of the Loan Documents shall remain in full force and effect and are hereby ratified and confirmed. Neither the execution, delivery nor effectiveness of this Agreement shall operate as a waiver of any right, power or remedy of the Administrative Agent or the Lenders, or of any Default or Event of Default (whether or not known to the Administrative Agent or the Lenders), under any of the Loan Documents, all of which rights, powers and remedies, with respect to any such Default or Event of Default or otherwise, are hereby expressly reserved by the Administrative Agent and the Lenders. This Agreement shall constitute a Loan Document for purposes of the Credit Agreement.

5. Governing Law. THIS AGREEMENT SHALL BE DEEMED TO BE A CONTRACT MADE UNDER AND GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK (INCLUDING SECTIONS 5-1401 AND 5-1402 OF THE GENERAL OBLIGATIONS LAW OF THE STATE OF NEW YORK).

6. Administrative Agent's Expenses. The Borrower hereby agrees to promptly reimburse the Administrative Agent for all of the reasonable out-of- pocket expenses, including, without limitation, attorneys' and paralegals' fees, it has heretofore or hereafter incurred or incurs in connection with the preparation, negotiation and execution of this Agreement and the related Loan Documents.

7. Counterparts. This Agreement may be executed in counterparts, each of which shall be an original and all of which together shall constitute one and the same agreement among the parties.

[signature pages to follow]

IN WITNESS WHEREOF, this Agreement has been duly executed as of the day and year first above written.

[Signatures of other Lenders omitted]