California Code, Health and Safety Code - HSC § 129932

(a) Each member shall be appointed by the director for a term of four years and shall hold office until the appointment and qualification of his or her successor or until one year has elapsed since the expiration of the term for which he or she was appointed, whichever first occurs. No person shall serve as a member of the board for more than two consecutive terms. The director may remove any member of the board for neglect of duty or other just cause.

(b) The terms of the appointive members of the board who are in office before January 1, 1994, shall expire as follows:

The terms shall expire in the same relative order as the original appointment dates.

(c) Vacancies occurring during a term shall be filled by appointment for the unexpired term.