Investor Relations

WILMINGTON, Mass., Mar 7, 2003 (BUSINESS WIRE) -- Charles River Laboratories International, Inc. (NYSE:CRL) announced today that Chairman, President and Chief Executive Officer James C. Foster and Senior Vice President and Chief Financial Officer Thomas F. Ackerman will discuss the Company's business outlook at the SG Cowen Securities Corporation 23rd Annual Health Care Conference in Boston on Tuesday, March 18, 2003, at 10:15 a.m. and 11:15 a.m. Eastern time.

A live webcast of the presentation will be available through a link that will be posted on the Investor Relations section of the Charles River Laboratories website, http://ir.criver.com. A webcast replay will be accessible through the Investor Relations section of the Company's website approximately three hours following the presentation and will remain available until Tuesday, March 25, 2003. The associated slide presentation will be available for downloading during that time.

CONTACT:
Investor Relations Contact :
Charles River Laboratories
Susan E. Hardy, 978/658-6000 ext.1616