California Code, Business and Professions Code - BPC § 23037

“Club” means a corporation or association which is the owner, lessee, or occupant of an establishment operated solely for objects of a social or athletic nature but not for pecuniary gain, having a bona fide membership list, and the majority of the members of which pay dues at least once in every year, and the property as well as the advantages of which belong to the members, and which sells alcoholic beverages only to its members and its bona fide guests. A guest is defined as a person who is actually a houseguest, or a person whose presence as a guest is in response to a specific invitation for the special occasion.