California Code, Penal Code - PEN § 26894

(a) A licensee shall not offer an opportunity to win an item of inventory in a game dominated by chance.

(b) Subdivision (a) shall not apply to a raffle conducted by a licensee organized as a nonprofit public benefit corporation pursuant to Part 2 (commencing with Section 5110) of Division 2 of Title 1 of the Corporations Code, or as a mutual benefit corporation pursuant to Part 3 (commencing with Section 7110) of Division 2 of Title 1 of the Corporations Code, if the nonprofit public benefit or mutual benefit corporation obtained the dealer's license solely and exclusively to assist that corporation or local chapters of that corporation in conducting auctions, raffles, or similar events at which firearms are auctioned or raffled off to fund the activities of that corporation or the local chapters of the corporation.