Food and Agricultural Code § 16522

Evidence of ownership of an animal or hide may include any of the following:

(a) A recorded brand registered in the name of the person in possession of the animal or hide.

(b) A brand inspection certificate.

(c) A bill of sale from the owner of the brand on the animal or hide.

(d) In the case of an unbranded animal or hide, a bill of sale which gives a description of the breed, sex, color, and natural markings, if any.

(e) A dairy exemption number.