(a)
Any private person or private company which advertises that it provides information or services regarding the sale or purchase of public property of any kind shall prominently indicate in the advertisement and any other presentation that the person or company is not a government official or a government agency.(b)
Failure on the part of any private person or private company to prominently indicate in the advertisement and any other presentation that the person or company is not a government agency shall constitute an unfair business practice within the meaning and for the purposes of Section 17200 of the Business and Professions Code, but is not a crime.
Source:
Section 11011.20, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=GOV§ionNum=11011.20..