CAHFS provides California's livestock and poultry industries, and veterinary practitioners who serve them, with a full range of diagnostic laboratory services for disease control, enhancement of health management, and protection from diseases common to animal and humans. In meeting this need, the CAHFS also serves as the backbone of California's disease warning system through its animal disease surveillance program. The system consists of four laboratories currently located in Davis, Turlock, Tulare and San Bernardino. Funding for this program is provided through a contract with the California Department of Food and Agriculture (CDFA) and through revenue generated from user fees. An additional program, the Equine Analytical Chemistry Laboratory, is funded through a contract with the California Horse Racing Board (CHRB) and horse wagering monies, and provides full-service drug testing and a pharmacology research and development program.