<SEC-DOCUMENT>0000822818-22-000018-index.html : 20220414
<SEC-HEADER>0000822818-22-000018.hdr.sgml : 20220414
<ACCEPTANCE-DATETIME>20220414155022
ACCESSION NUMBER:		0000822818-22-000018
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		12
CONFORMED PERIOD OF REPORT:	20220525
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:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34223
		FILM NUMBER:		22827120

	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>
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<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>clhproxy2021.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: clhproxy2021.htm

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<SEQUENCE>2
<FILENAME>boardattributesa.jpg
<TEXT>
Document 2 - file: boardattributesa.jpg

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<SEQUENCE>3
<FILENAME>boardmatrixnewa.jpg
<TEXT>
Document 3 - file: boardmatrixnewa.jpg

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<SEQUENCE>4
<FILENAME>ceocompmixa.jpg
<TEXT>
Document 4 - file: ceocompmixa.jpg

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<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>clhlogoa01a.jpg
<TEXT>
Document 5 - file: clhlogoa01a.jpg

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<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>clhsignature2019a01a.jpg
<TEXT>
Document 6 - file: clhsignature2019a01a.jpg

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<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>dtjsignature2a.jpg
<TEXT>
Document 7 - file: dtjsignature2a.jpg

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<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>matrix2a.jpg
<TEXT>
Document 8 - file: matrix2a.jpg

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<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>proxycard-1a.jpg
<TEXT>
Document 9 - file: proxycard-1a.jpg

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<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>proxycard-2a.jpg
<TEXT>
Document 10 - file: proxycard-2a.jpg

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<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>tm2210594d1-pc_neocompa.jpg
<TEXT>
Document 11 - file: tm2210594d1-pc_neocompa.jpg

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<TYPE>GRAPHIC
<SEQUENCE>12
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<TEXT>
Document 12 - file: whatwedo_dontdov2.jpg

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