California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 74622

(a) Not later than April 1, 1987, the director shall establish a list of vintners who are eligible to vote on the implementation of this chapter. Eligibility shall be based on volume processed in the immediately preceding marketing season. In establishing the list, the director may require producers, vintners, county agricultural commissioners, and others to submit the names and mailing addresses of all vintners. The director also may require that the information provided include the quantity of winegrapes sold to vintners and the quantity of winegrapes processed by vintners or, in the alternative, may establish procedures for receiving the information at the time of the referendum. The request for this information shall be in writing. The information required by the director shall be filed within 30 days following receipt of the written notice.

(b) Any vintner whose name does not appear on the director's list may have his or her name included on the list by filing with the director a signed statement identifying himself or herself as a vintner. Failure to be on the list does not exempt the vintner from paying assessments under this chapter.