California Code, Health and Safety Code - HSC § 129940

(a) There shall be six ex officio members of the board, who shall be the director of the department, the State Fire Marshal, the State Geologist, the Executive Director of the California Building Standards Commission, the State Director of Health Services, and the Deputy Director of the Division of Facilities Development in the department, or their officially designated representatives.

(b) The director may also appoint up to three additional ex officio members, with the advice of the chair. On January 1, 1994, director-appointed ex officio members may continue to serve until appointment of their successors by the director.