California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 6293.4

(a) Upon the presentation and filing of a petition, the board of supervisors shall refer the petition to the county agricultural commissioner for the preparation of a register of owners of winegrape growing acreage within the proposed district, and for an investigation and report.

(b) The agricultural commissioner shall create a register of all winegrape growing acreage owners within the proposed district describing the net acreage or size of land devoted to the growing of winegrapes. The commissioner shall file with the register a report and recommendation to the board of supervisors on whether conditions of Pierce's disease, the glassy-winged sharpshooter, or other pest or disease warrant the board of supervisors proceeding with the organization of the district.