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    ACCESSION NUMBER:		0000822818-21-000007
    CONFORMED SUBMISSION TYPE:	PRE 14A
    PUBLIC DOCUMENT COUNT:		12
    CONFORMED PERIOD OF REPORT:	20210602
    FILED AS OF DATE:		20210413
    DATE AS OF CHANGE:		20210413

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CLEAN HARBORS INC
    		CENTRAL INDEX KEY:			0000822818
    		STANDARD INDUSTRIAL CLASSIFICATION:	HAZARDOUS WASTE MANAGEMENT [4955]
    		IRS NUMBER:				042997780
    		STATE OF INCORPORATION:			MA
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		PRE 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-34223
    		FILM NUMBER:		21823557

    	BUSINESS ADDRESS:
    		STREET 1:		42 LONGWATER DRIVE
    		STREET 2:		P.O. BOX 9149
    		CITY:			NORWELL
    		STATE:			MA
    		ZIP:			02061-9149
    		BUSINESS PHONE:		781-792-5000

    	MAIL ADDRESS:
    		STREET 1:		42 LONGWATER DRIVE
    		CITY:			NORWELL
    		STATE:			MA
    		ZIP:			02061-9149
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    Document 3 - file: ceocompmix1.jpg

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    Document 4 - file: clhlogoa011.jpg

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    Document 5 - file: clhsignature2019a011.jpg

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