Cal. Ed. Code § 35734
The plans and recommendations may include a provision for trustee areas that provide for representation in accordance with population and geographic factors of the entire area of the district. Any provision of that kind shall also specify the boundaries of the proposed trustee areas and shall specify whether members of the governing board shall be elected by the registered voters of the entire school district or by only the registered voters of that particular trustee area. A proposal for trustee areas shall be considered as an inherent part of the proposal and not as a separate proposition.
In the absence of a provision for trustee areas, the proposed new district shall have a governing board elected by the registered voters of the entire district.
Ca. Educ. Code § 35734