If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

 

PART I — REGISTRANT INFORMATION

 

CLEAN HARBORS, INC.

Full Name of Registrant

Former Name if Applicable

1501 Washington Street,

Address of Principal Executive Office (Street and Number)

Braintree, MA  02185

City, State and Zip Code

 

PART II — RULES 12b-25(b) AND (c)

 

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)

 

	(a)	The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense
ý	(b)	The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and
	(c)	The accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

 

PART III — NARRATIVE

 

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

 

The registrant is currently finalizing its financial statements for inclusion in the registrant’s Annual Report on Form 10-K for the year ended December 31, 2005 and the assessment of its internal controls over financial reporting as of December 31, 2005 contemplated by Section 404 of the Sarbanes-Oxley Act of 202, but has experienced delays in completing these tasks.  These delays have resulted primarily from the complexity and extent of work required to perform the Section 404 assessment, particularly in view of the related standards for audits of internal controls over financial reporting mandated by the Public Accounting Oversight Board.

 

 

 

(Attach extra Sheets if Needed)

PART IV — OTHER INFORMATION

 

(1)		Name and telephone number of person to contact in regard to this notification
		James M. Rutledge		(781)		849-1800 x4468
		(Name)		(Area Code)		(Telephone Number)
(2)		Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed ? If answer is no, identify report(s).
						ý Yes    o No
(3)		Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof?
						ý Yes    o No
		If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

 

The registrant previously announced its unaudited fiscal year-end 2005 financial results by press release, dated March 7, 2006, a copy of which was furnished as an exhibit to a Form 8-K filed with the Securities and Exchange Commission on March 7, 2006.  Such unaudited results reflected various changes in the registrant’s results of operation from the previous year, the more significant of which were summarized in the text portion of the press release.  The registrant does not expect that the audited financial statement that will be included in its Form 10-K for the year ended December 31, 2005 will reflect any material differences from the results of operation reflected in such unaudited results.

 

CLEAN HARBORS, INC.

(Name of Registrant as Specified in Charter)

 

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

 

Date

March 17, 2006

By

/s/ James M. Rutledge

 

INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence of the representative’s authority to sign on behalf of the registrant shall be filed with the form.

 

	ATTENTION
Intentional misstatements or omissions of fact constitute Federal Criminal Violations (See 18 U.S.C. 1001).

 

General Instructions

 

1. This form is required by Rule 12b-25 (17 CFR 240.12b-25) of the General Rules and Regulations under the Securities Exchange Act of 1934.
2. One signed original and four conformed copies of this form and amendments thereto must be completed and filed with the Securities and Exchange Commission, Washington, D.C. 20549, in accordance with Rule 0-3 of the General Rules and Regulations under the Act. The information contained in or filed with the form will be made a matter of public record in the Commission files.
3. A manually signed copy of the form and amendments thereto shall be filed with each national securities exchange on which any class of securities of the registrant is registered.
4. Amendments to the notifications must also be filed on Form 12b-25 but need not restate information that has been correctly furnished. The form shall be clearly identified as an amended notification.
5. Electronic filers. This form shall not be used by electronic filers unable to timely file a report solely due to electronic difficulties. Filers unable to submit a report within the time period prescribed due to difficulties in electronic filing should comply with either Rule 201 or Rule 202 of Regulation S-T (§232.201 or §232.202 of this chapter) or apply for an adjustment in filing date pursuant to Rule 13(b) of Regulation S-T (§232.13(b) of this Chapter).