California Code, Penal Code - PEN § 598d

(a) Notwithstanding any other provision of law, horsemeat may not be offered for sale for human consumption. No restaurant, cafe, or other public eating place may offer horsemeat for human consumption.

(b) Violation of this section is a misdemeanor punishable by a fine of not more than one thousand dollars ($1,000), or by confinement in jail for not less than 30 days nor more than two years, or by both that fine and confinement.

(c) A second or subsequent offense under this section is punishable by imprisonment in the state prison for not less than two years nor more than five years.