California Code, Food and Agricultural Code (Formerly Agricultural Code) - FAC § 69063

The secretary shall establish a period in which to conduct the referendum that shall not be less than 10 days or more than 60 days in duration, and may prescribe additional procedures necessary to conduct the referendum. If the initial period established is less than 60 days, the secretary may extend the period. However, the total referendum period may not exceed 60 days.