CA Pub Res Code Section 32609

(a)

A quorum shall consist of a majority of the voting members of the board. All meetings of the board shall be held in accordance with the Bagley-Keene Open Meetings Act (Article 9 (commencing with Section 11120) of Chapter 1 of Part 1 of Division 3 of Title 2 of the Government Code).

(b)

Any action of the board affecting any matter shall be taken by a majority vote of the membership of the board, a quorum being present.