California Code, Business and Professions Code - BPC § 26226.1

The bylaws may provide that the territory in which the association has members shall be divided into districts and that directors shall be elected from the several districts. If the bylaws divides the territory into districts for the election of directors, the bylaws shall specify the number of directors to be elected by each district and the manner and method of reapportioning the directors and of redistricting the territory covered by the association.