WILMINGTON, Mass.--(BUSINESS WIRE)--Charles River Laboratories International, Inc. (NYSE:CRL) announced today the appointment of Stephanie Wells to the role of Corporate Senior Vice President, Marketing and Chief Marketing Officer, effective March 12, 2007. In this newly created position, Ms. Wells will be responsible for establishing global marketing strategies and branding initiatives and will drive the implementation of both. She will also participate as an integral and active member in the strategic planning process of the Company.