Cal. Health and Safety Code § 34271.5

(a) The governing body of a county of the 10th class may appoint two additional commissioners to increase the number of commissioners of an authority which is in existence and transacting business and exercising its powers on March 7, 1973. (b) One of the two additional commissioners shall be a project tenant and the other shall be a senior citizen over 62 years of age who may be a tenant. The two additional commissioners first appointed shall not be or have been commissioners of such authority. (c) The two additional commissioners shall serve for terms of four years from the date of their appointments. Their successors shall be appointed for a term of four years except that all vacancies shall be filled for the unexpired term. (d) Under this section, four commissioners shall constitute a quorum of the authority for the purpose of conducting its business and exercising its powers and for all other purposes. (e) All of the provisions of this part shall apply to an authority of a county of the 10th class, except those provisions which conflict with the provisions of this section.