Cal. Pub. Util. Code § 107011

The board, at its first meeting, and thereafter annually at the meeting designated by the board, shall elect a chair, who shall preside at all meetings, and a vice chair, who shall preside in the absence of the chair. In the event of the chair’s or vice chair’s absence or inability to act, the directors present, provided a quorum exists, by an order entered into the minutes, shall select one director to act as chair pro tempore, who, while so acting, shall have all the authority of the chair.