California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 19346

Any carcasses or parts or products of animals which are not intended for use as human food shall prior to their being offered for sale or transportation, be denatured or otherwise identified as prescribed by regulations of the director to prevent their use as human food. No person shall buy, sell, transport, or offer for sale or transportation or receive for transportation any carcasses, parts thereof, meat or meat food product of any such animals which are not intended for use as human food unless they are denatured or otherwise identified as required by the regulations of the director.