Cal. Bus. & Prof. Code § 23399.03

(a) A winegrower licensee may apply to the department for an estate tasting event permit. If approved by the department, the permit issued to the winegrower licensee shall authorize the winegrower to exercise its tasting room privileges for wine manufactured by or for the winegrower on both of the following:
1. (1) Property adjacent to the licensed premises and owned by or under the control of the licensee.
2. (2) A nonadjacent vineyard that is owned by or under control of the licensee.
(b) Approval of the permit shall grant the licensee all of the same privileges allowed under their license for the duration of the estate tasting event.
(c) For each tasting event, consent shall be first obtained by the licensee from the department in the form of an estate tasting event authorization from the department. The fee for each estate tasting event authorization shall be one hundred dollars ($100).
1. (1) The department may approve an estate tasting event authorization in the same manner as it does for catering authorizations issued pursuant to Section 23399.
2. (2) An estate tasting event authorization shall not be issued for more than 36 events per licensee in one calendar year.
(d) The annual fee for an estate tasting event permit shall be the annual fee as specified in subdivision (b) of Section 23320. The permit may be renewed annually at the same time as the licensee’s license. An estate tasting event permit shall be transferable as a part of the license.
(e) At all approved events, the licensee may exercise only those privileges authorized by the licensee’s license and shall comply with all provisions of the act pertaining to the conduct of the winegrower license. A violation of those provisions may be grounds for suspension or revocation of the licensee’s license or permit, or both, as though the violation occurred on the licensed premises.
(f) All fees collected pursuant to this section shall be deposited in the Alcohol Beverage Control Fund as provided in Section 25761.
(g) An estate tasting event authorization does not relieve an applicant of review and approval by the appropriate local city, county, or city and county for any other permit necessary prior to the event but subsequent to approval by the department to host the event, including, but not limited to, a local requirement to obtain approval by the local fire marshal or local fire code official. If the local city, county, or city and county requires approval but does not grant it, the authorization granted by the department pursuant to subdivision (c) becomes void and is nonrefundable.
(h) Nothing in this section is intended to alter, diminish, replace, or eliminate the authority of a county, city, or city and county from exercising land use regulatory authority by law to the extent the authority may restrict, but not eliminate, privileges afforded by this section.