Cal. Food and Agricultural Code § 74770

(a) Within 30 days of the effective date of this chapter, the director shall establish a list of grape rootstock nurseries eligible to vote on the implementation of this chapter. In establishing the list, the director may require that all grape rootstock nurseries submit the names and mailing addresses of all grape rootstock nurseries. The director also may require that the information provided include the quantity of grape rootstock produced by each nursery or, in the alternative, may establish procedures for receiving the information at the time of the referendum vote specified in Section 74771. The request for the information shall be in writing, and the requested information shall be filed within 10 days following receipt of the request. (b) Any grape rootstock nursery whose name does not appear upon the appropriate list may have his or her name placed on the list by filing with the director a signed statement identifying himself or herself as a nursery owner or representative of a nursery owner. The absence of an owner’s name from the list does not exempt the person from paying assessments and does not invalidate any industry votes conducted pursuant to this article. (c) Proponents and opponents of the commission may contact nurseries on the lists in a form and manner prescribed by the director if all expenses associated with the contacts are paid in advance.