California Code, Business and Professions Code - BPC § 23661.5

A person who manufactures or produces wine or beer outside of this state, but within the United States, in accordance with the requirements of the laws of the United States, may transport such wine or beer into this state, in a vehicle owned and operated by the manufacturer or producer or operated by him pursuant to a lease the term of which is not less than 30 days, or by contract carrier, for delivery to a licensee who is authorized under this division to import the wine or beer into this state, if: