Cal. Health & Safety Code § 118375

No person conducting, having charge of, or control of, any hotel, restaurant, saloon, soda fountain, store, theater, public hall, public or private school, church, hospital, club, office building, park, playground, lavatory or washroom, barber shop, railroad train, boat, or any other public place, building, room, or conveyance, shall provide or expose for common use, or permit to be so provided or exposed, or allow to be used in common, any cup, glass, or other receptacle used for drinking purposes.