Cal. Bus. & Prof. Code § 5007

The president shall preside at all meetings of the board, and in the event of the president’s absence or inability to act, the vice president shall preside. If both the president and vice president are absent or unable to act, the secretary-treasurer shall preside at meetings of the board. The president may designate a board member who is not an officer to preside at a meeting of the board if all officers of the board are absent or unable to act at that meeting. Other duties of the president, vice president, and the duties of the secretary-treasurer, shall be such as the board may prescribe.