California Code, Business and Professions Code - BPC § 23357.1

An out-of-state beer manufacturer's certificate authorizes the shipment of beer manufactured without this state to licensed importers within this state.  Beer manufactured without this state, but not beer manufactured without the United States, may only be obtained by a licensed importer within this state from the holder of an active out-of-state beer manufacturer's certificate.  Only one out-of-state beer manufacturer's certificate may be issued to any one beer manufacturer.

A California beer manufacturer with a license in good standing in this state may ship into this state beer which was manufactured at plants out of this state without holding an out-of-state beer manufacturer's certificate.