Food and Agricultural Code § 19342

No slaughterer shall pick up or receive any dead animal at his slaughterhouse except those which have died en route and such animals shall be transported directly and without delay to a licensed rendering establishment, however apparently healthy animals transported by a person other than a dead animal hauler, found to have just expired on arrival due to injuries during transportation may be immediately slaughtered under conditions specified by the secretary which will conform to the purposes of this chapter.