Cal. Bus. & Prof. Code § 9884.19
The bureau may adopt, amend or repeal in accordance with the provisions of Chapter 4.5 (commencing with Section 11371), Part 1, Division 3, Title 2 of the Government Code such regulations as may be reasonably necessary to carry out the provisions of this chapter in the protection of the public from fraudulent or misleading advertising by an automotive repair dealer, including formulation of definitions, to the extent feasible, of the terms "fraud," "guarantee," and words of like import, and of "negligence," and guidelines for the suspension and revocation of licenses. The bureau shall distribute to each registered repair dealer copies of this chapter and of the regulations adopted pursuant to this chapter.
Ca. Bus. and Prof'l. Code § 9884.19