Joseph Herring
Chairman of the Board and Chief Executive Officer

Joseph L. Herring, 55, has been Covance’s Chief Executive Officer since January 2005, and Chairman since January 2006. Mr. Herring was President and Chief Operating Officer from November 2001 to December 2004, and was Covance’s Corporate Senior Vice President and President—Early Development Services from 1999 to November 2001. From September 1996 to September 1999, Mr. Herring was Corporate Vice President and General Manager of Covance Laboratories North America. Prior to joining Covance, Mr. Herring spent 18 years at the American Hospital Supply/Baxter International/Caremark International family of healthcare service companies where he held a variety of senior leadership positions, culminating in the position of Vice President and General Manager of its oncology business. Mr. Herring has been a member of the Covance Board since 2004.