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    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		17
    CONFORMED PERIOD OF REPORT:	20170509
    FILED AS OF DATE:		20170330
    DATE AS OF CHANGE:		20170330
    EFFECTIVENESS DATE:		20170330

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			CHARLES RIVER LABORATORIES INTERNATIONAL INC
    		CENTRAL INDEX KEY:			0001100682
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731]
    		IRS NUMBER:				061397316
    		FISCAL YEAR END:			1231

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    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-15943
    		FILM NUMBER:		17724003

    	BUSINESS ADDRESS:
    		STREET 1:		251 BALLARDVALE ST
    		CITY:			WILMINGTON
    		STATE:			MA
    		ZIP:			01887
    		BUSINESS PHONE:		781-222-6000

    	MAIL ADDRESS:
    		STREET 1:		251 BALLARDVALE ST
    		CITY:			WILMINGTON
    		STATE:			MA
    		ZIP:			01887

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	CHARLES RIVER LABORATORIES HOLDINGS INC
    		DATE OF NAME CHANGE:	19991208
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