California Code, Business and Professions Code - BPC § 23661.1

Notwithstanding any other provision of law, an adult passenger on board a chartered airplane on a flight which commences and terminates in the continental United States and which does not land outside the continental United States, may bring not to exceed one quart of alcoholic beverages into this State for household or personal use. Such alcoholic beverages shall be exempt from state licensing restrictions. No person shall bring in more than one quart of alcoholic beverages during any calendar year pursuant to the authority granted in this section.