California Code, Water Code - WAT § 8577

(a) A board member shall not participate in any board action or attempt to influence any decision or recommendation by any employee of, or consultant to, the board that involves himself or herself or that involves any entity with which the member is connected as a director, officer, consultant, or full- or part-time employee, or in which the member has a direct personal financial interest within the meaning of Section 87100 of the Government Code.

(b) A board member shall not participate in any proceeding before any agency as a consultant or in any other capacity on behalf of any person that actively participates in matters before the board.

(c) For a period of 12 months after leaving office, a former board member shall not act as agent or attorney for, or otherwise represent, any other person before the board by making any formal or informal appearance or by making any oral or written communication to the board.

(d) A board member shall not advocate to the United States Army Corps of Engineers or other federal agency on behalf of any project that has been or is reasonably anticipated to be submitted to the board for review, unless the board authorizes that action in accordance with Section 8560.