UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE l3D Under the Securities Exchange Act of 1934 (Amendment No. 5)* CLEAN HARBORS, INC. -------------------------------------------------------------------------------- (Name of Issuer) Common Stock, par value $0.01 per share -------------------------------------------------------------------------------- (Title of Class of Securities) 184496107 -------------------------------------------------------------------------------- (CUSIP Number) with a copy to: Stephen Feinberg Robert G. Minion, Esq. 299 Park Avenue Lowenstein Sandler PC 22nd Floor 65 Livingston Avenue New York, New York 10171 Roseland, New Jersey 07068 (212) 421-2600 (973) 597-2424 -------------------------------------------------------------------------------- (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) September 23, 2004 -------------------------------------------------------------------------------- (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule l3G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Sections 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. [ ] Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Section 240.13d-7 for other parties to whom copies are to be sent. *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page. The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes). Cusip No. 184496107 -------------------------------------------------------------------------------- 1) Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only): Stephen Feinberg -------------------------------------------------------------------------------- 2) Check the Appropriate Box if a Member of a Group (See Instructions): (a) Not (b) Applicable -------------------------------------------------------------------------------- 3) SEC Use Only -------------------------------------------------------------------------------- 4) Source of Funds (See Instructions): WC -------------------------------------------------------------------------------- 5) Check if Disclosure of Legal Proceedings is Required Pursuant to Items 2(d) or 2(e): Not Applicable -------------------------------------------------------------------------------- 6) Citizenship or Place of Organization: United States -------------------------------------------------------------------------------- Number of 7) Sole Voting Power: * ------------------------------------ Shares Beneficially 8) Shared Voting Power: * ------------------------------------ Owned by Each Reporting 9) Sole Dispositive Power: * ------------------------------------ Person With 10) Shared Dispositive Power: * ------------------------------------ -------------------------------------------------------------------------------- 11) Aggregate Amount Beneficially Owned by Each Reporting Person: 2,915,650* -------------------------------------------------------------------------------- 12) Check if the Aggregate Amount in Row (11) Excludes Certain Shares (See Instructions): Not Applicable -------------------------------------------------------------------------------- 13) Percent of Class Represented by Amount in Row (11): 18.6%* -------------------------------------------------------------------------------- 14) Type of Reporting Person (See Instructions): IA, IN -------------------------------------------------------------------------------- * Cerberus CH LLC, a Delaware limited liability company ("Cerberus CH"), is the holder of warrants to purchase an aggregate of 1,609,250 shares (subject to adjustments in certain circumstances) of common stock, par value $0.01 per share (the "Shares"), of Clean Harbors, Inc., a Massachusetts corporation (the "Company"). In addition, Cerberus Partners, L.P., a Delaware limited partnership ("Cerberus"), is the holder of 195,000 Shares, Cerberus International, Ltd., a corporation organized under the laws of the Bahamas ("International"), is the holder of 543,100 Shares, Cerberus Series Two Holdings, LLC, a Delaware limited liability company ("Cerberus Series Two"), is the holder of 255,000 Shares, Cerberus America Series One Holdings, LLC, a Delaware limited liability company ("Cerberus America"), is the holder of 50,800 Shares, and various other private investment funds (the "Funds") hold in the aggregate 262,500 Shares. Stephen Feinberg possesses sole power to vote and direct the disposition of all securities held by Cerberus CH, Cerberus, International, Cerberus Series Two, Cerberus America and the Funds. Thus, as of September 23, 2004, for the purposes of Reg. Section 240.13d-3, Stephen Feinberg is deemed to beneficially own 2,915,650 Shares, or 18.6% of the Shares deemed issued and outstanding as of that date. Item 5. Interest in Securities of the Issuer. ------------------------------------ Based upon information set forth in the Company's Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2004, as of July 29, 2004 there were issued and outstanding 14,084,982 Shares. As of September 23, 2004, Cerberus CH is the holder of warrants to purchase an aggregate of 1,609,250 Shares (subject to adjustments in certain circumstances), Cerberus is the holder of 195,000 Shares, International is the holder of 543,100 Shares, Cerberus Series Two is the holder of 255,000 Shares, Cerberus America is the holder of 50,800 Shares and the Funds hold in the aggregate 262,500 Shares. Stephen Feinberg possesses sole power to vote and direct the disposition of all securities held by Cerberus CH, Cerberus, International, Cerberus Series Two, Cerberus America and the Funds. Thus, as of September 23, 2004, for the purposes of Reg. Section 240.13d-3, Stephen Feinberg is deemed to beneficially own 2,915,650 Shares, or 18.6% of the Shares deemed issued and outstanding as of that date. During the sixty days prior to September 23, 2004, the only transaction in Shares, or securities convertible into, exercisable for or exchangeable for Shares, by Mr. Feinberg or any person or entity controlled by him or any person or entity for which he possesses voting or investment control over the securities thereof, was the September 23, 2004 sale of warrants to acquire an aggregate of 250,000 Shares, in a private transaction with an unrelated third party, at a sale price of $5.01 per warrant. Signature --------- After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. September 29, 2004 /s/ Stephen Feinberg ---------------------------------------- Stephen Feinberg, on behalf of Cerberus Associates, L.L.C., the general partner of Cerberus Partners, L.P., the managing member of Cerberus CH LLC, and Cerberus Series Two Holdings, LLC, Cerberus America Series One Holdings, LLC, Cerberus International, Ltd. and the Funds Attention: Intentional misstatements or omissions of fact constitute Federal criminal violations (See 18 U.S.C. 1001).