Cal. Gov. Code § 20099
The board may appoint a committee of one or more of its members to perform any act within the power of the board itself to perform. The board may also delegate authority to the executive officer to perform those acts. Except where the board, in delegating authority to a committee or the executive officer, provides that the committee or the executive officer may act finally, all acts of the committee or the executive officer shall be reported to the board, at its next regular meeting, and shall be subject to review and ratification or reversal by the board.
Reversal by the board of any act of the committee or the executive officer shall be effective as of the date fixed by the board, but payment of benefits prior to board action shall not be affected by that action, except for such recovery of amounts paid from the person to whom they were paid as the board may direct.
The executive officer may delegate to his or her subordinates any act or duty unless the board by motion or resolution recorded in the minutes has required him or her to act personally.
Ca. Gov. Code § 20099