California Code, Business and Professions Code - BPC § 7190

(a) The name or position of a public official may not be used in an advertisement or any promotional material by a person licensed under this chapter, without the written authorization of the public official. A printed advertisement or promotional material that uses the name or position of a public official with that public official's written authorization, shall also include a disclaimer in at least 10-point roman boldface type, that shall be in a color or print which contrasts with the background so as to be easily legible, and set apart from any other printed matter. The disclaimer shall consist of a statement that reads “The name of (specify name of public official) does not imply that (specify name of public official) endorses this product or service in (his or her) official capacity and does not imply an endorsement by any governmental entity.” If the advertisement is broadcast, this statement shall be read in a clearly audible tone of voice.

(b) For purposes of this section, “public official” means a member, officer, employee, or consultant of a local government agency, as defined in Section 82041 of the Government Code, or state agency, as defined in Section 82049 of the Government Code.