    <SEC-DOCUMENT>0000822818-22-000019-index.html : 20220414
    <SEC-HEADER>0000822818-22-000019.hdr.sgml : 20220414
    <ACCEPTANCE-DATETIME>20220414155136
    ACCESSION NUMBER:		0000822818-22-000019
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20220414
    DATE AS OF CHANGE:		20220414

    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:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-34223
    		FILM NUMBER:		22827130

    	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
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>e-proxynoticex2021.htm
    <DESCRIPTION>DEFA14A
    <TEXT>
    Document 1 - file: e-proxynoticex2021.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>e-proxynoticexpage1a.jpg
    <TEXT>
    Document 2 - file: e-proxynoticexpage1a.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>e-proxynoticexpage2a.jpg
    <TEXT>
    Document 3 - file: e-proxynoticexpage2a.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>