(a) The commission shall adopt and approve a Conflict of Interest Code pursuant to Article 3 (commencing with Section 87300) of Chapter 7 of Title 9 of the Government Code.
(b) For a period of 12 months after leaving office, a former commissioner shall be prohibited from acting as an agent or attorney for, or otherwise representing, any person before the commission by making any formal or informal appearance before, or any oral or written communication to, the commission.