California Code, Government Code - GOV § 61043

(a) Within 45 days after the effective date of the formation of a district, the board of directors shall meet and elect its officers. Thereafter, within 45 days after each general district or unopposed election, the board of directors shall meet and elect the officers of the board of directors. A board of directors may elect the officers of the board of directors annually.

(b) The officers of a board of directors are a president and a vice president. The president shall preside over meetings of the board of directors and the vice president shall serve in the president's absence or inability to serve.

(c) A board of directors may create additional offices and elect members to those offices, provided that no member of a board of directors shall hold more than one office.