California Code, Education Code - EDC § 22256

(a) If the board member or officer knowingly participates in, or knowingly undertakes to conceal an act or omission of the other board member or officer knowing that the act or omission is a breach.

(b) If the board member's or officer's failure to comply with his or her responsibilities as set forth in Section 22251, 22252, or 22253 has enabled another board member or officer to commit a breach.

(c) If the board member or officer has knowledge of a breach unless the board member or officer makes reasonable efforts under the circumstances to remedy the breach.