The resolution reestablishing the election districts shall describe the new boundaries of the election districts by reference to a map or maps on file with the secretary of the district. Immediately upon adoption of the resolution, the secretary shall file a certified copy of the resolution and the map or maps describing all election districts with the Secretary of State and with the county elections official of each county with territory within the boundaries of the district.
Ca. Pub. Util. Code § 28750.4