Cal. Bus. & Prof. Code § 25503.19
(a) Nothing in this division shall prohibit the issuance or transfer of any retail on-sale general license to any person with respect to passenger cruise ships or lines owned by, or operated by or on behalf of, the licensee, notwithstanding that a manufacturer, winegrower, manfacturer’s agent, California winegrower’s agent, rectifier, distiller, bottler, importer, or wholesaler holds the ownership of any interest, directly or indirectly, in the cruise ships or lines or in the retail licensee, subject to the following conditions: