Cal. Health & Saf. Code § 32100.6
Notwithstanding any other provision of law, the voters of the Eden Township Hospital District may file a petition with its board of directors pursuant to the provisions of Section 32100.1, to elect its directors either by zones or from zones; provided, however, that the petition shall be deemed sufficient if it is signed by registered voters of the district equal in number to 5 percent of the number of votes cast in the district for the office of Governor at the last preceding election at which a Governor was elected.
The term "by zones" shall mean the election of directors of a local hospital by the voters of the zone alone. The term "from zones" shall mean the election of directors of a local hospital district who are residents of the zone from which they are elected by the voters of the entire district.
Ca. Health and Saf. Code § 32100.6