CAHFS is composed of four livestock and poultry laboratories in Davis, Tulare, San Bernardino and Turlock. With its strategically located laboratories, CAHFS is uniquely positioned to serve California's animal industries.

CAHFS operating hours are Monday - Friday from 8:00 am - 5:00 pm except holidays. After-hours and weekend submissions are accepted at the discretion of the on-call diagnostician; extra fees will apply. Contact your laboratory for instructions.