<SEC-DOCUMENT>0000822818-20-000004-index.html : 20200424
<SEC-HEADER>0000822818-20-000004.hdr.sgml : 20200424
<ACCEPTANCE-DATETIME>20200424162906
ACCESSION NUMBER:		0000822818-20-000004
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		11
CONFORMED PERIOD OF REPORT:	20191231
FILED AS OF DATE:		20200424
DATE AS OF CHANGE:		20200424
EFFECTIVENESS DATE:		20200424

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:		20815435

	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>DEF 14A
<SEQUENCE>1
<FILENAME>clhproxy2020.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: clhproxy2020.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>clhlogoa01.jpg
<TEXT>
Document 2 - file: clhlogoa01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>clhsignature2019a01.jpg
<TEXT>
Document 3 - file: clhsignature2019a01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>davismalmsignature2019a01.jpg
<TEXT>
Document 4 - file: davismalmsignature2019a01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>committeecompositionfinal.jpg
<TEXT>
Document 5 - file: committeecompositionfinal.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>a132721copprac4ctbl.jpg
<TEXT>
Document 6 - file: a132721copprac4ctbl.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>a132721ceocomp4cpie.jpg
<TEXT>
Document 7 - file: a132721ceocomp4cpie.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>a132721neocomp4cpie.jpg
<TEXT>
Document 8 - file: a132721neocomp4cpie.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>davismalmsignature201902a01.jpg
<TEXT>
Document 9 - file: davismalmsignature201902a01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>proxycardfinala01.jpg
<TEXT>
Document 10 - file: proxycardfinala01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>proxycardfinal2a01.jpg
<TEXT>
Document 11 - file: proxycardfinal2a01.jpg

</DOCUMENT>
</SEC-DOCUMENT>