Cal. Health & Safety Code § 50902
(f) The Senate Committee on Rules and the Speaker of the Assembly shall each appoint a person representing the public.
The term of members of the board shall be six years. Any person appointed to fill a vacancy on the board shall serve only for the remainder of the unexpired term. Members of the board shall, subject to continued qualification, be eligible for reappointment. If a member of the board ceases to meet the qualifications specified in this section, the membership of that person on the board shall be terminated.