Cal. Code Regs. tit. 4 § 1892
No person shall give, or offer or promise to give, or attempt to give or offer, any money, bribe or thing of value to any owner, trainer, jockey, agent, or any other person participating in the conduct of a race meeting in any capacity, with the intention, understanding or agreement that such owner, trainer, jockey, agent or other person shall not use his best efforts to win a race or so conduct himself in such race that any other participant in such race shall be assisted or enabled to win such race; nor shall any trainer, jockey, owner, agent or other person participating at any race meeting accept, offer to accept, or agree to accept any money, bribe or thing of value with the intention, understanding or agreement that he will not use his best efforts to win a race or to so conduct himself that any other horse or horses entered in such race shall thereby be assisted or enabled to win such race.
Cal. Code Regs. Tit. 4, § 1892