Cal. Bus. & Prof. Code § 23399.01
(a)
(b) For each catering event, consent for the sale of beer shall be first obtained by the licensee from the department in the form of a beer catering authorization from the department. A beer catering authorization shall be subject to approval by the appropriate local law enforcement agency. The fee for each beer catering authorization shall be based on the estimated attendance on each day of the event and shall be the same as the event authorization fee specified in Section 23399.