California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 9163

Any person that owns or has possession or control of any animal which is affected by any contagious or infectious disease, that fails to keep the animal within an inclosure, or herd the animal in a place where it is secure from contact with other animals of like kind that are not so affected, or that permits the infected animal to be driven on any public highway, is guilty of a misdemeanor, which is punishable by a fine of not more than one thousand dollars ($1,000) for each offense.