California Code, Government Code - GOV § 66503

(a) Two members each from the City and County of San Francisco and the Counties of Contra Costa and San Mateo, and three members each from the Counties of Alameda and Santa Clara. With respect to the members from the City and County of San Francisco, the mayor shall appoint one member and the board of supervisors shall appoint one member. With respect to the members from Alameda, Contra Costa, San Mateo, and Santa Clara Counties, the city selection committee organized in each county pursuant to Article 11 (commencing with Section 50270) of Chapter 1 of Part 1 of Division 1 of Title 5, shall appoint one member and the board of supervisors shall appoint one member. The Mayor of the City of Oakland shall be self-appointed or shall appoint a member of the Oakland City Council to serve as the third member from the County of Alameda. The Mayor of the City of San Jose shall be self-appointed or shall appoint a member of the San Jose City Council to serve as the third member from the County of Santa Clara.

(b) One member each from Marin, Napa, Solano, and Sonoma Counties. The city selection committee of these counties shall furnish to the board of supervisors the names of three nominees and the board of supervisors shall appoint one of the nominees to represent the county.

(c) One representative each appointed by the Association of Bay Area Governments and the San Francisco Bay Conservation and Development Commission. The representative appointed by the San Francisco Bay Conservation and Development Commission shall be a member of the commission and a resident of the City and County of San Francisco, and shall be approved by the Mayor of San Francisco.

(d) One representative, who shall be a nonvoting member, appointed by the Secretary of Transportation.

(e) One representative each appointed by the United States Department of Transportation and Department of Housing and Urban Development. However, these representatives shall serve only if the agencies they represent are amenable to these appointments. These representatives shall be nonvoting members.

(f) Public officers, whether elected or appointed, may be appointed and serve as members of the commission during their terms of public office.

(g) No more than three members appointed pursuant to subdivisions (a), (b), and (c) shall be residents of the same county.