California Code, Business and Professions Code - BPC § 1906

(a) The dental hygiene board shall adopt, amend, and revoke regulations to implement the requirements of this article.

(b) All regulations adopted by the dental hygiene board shall comply with the provisions of Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code.

(c) No regulation adopted by the dental hygiene board shall impose a requirement or a prohibition directly upon a licensed dentist or on the administration of a dental office, unless specifically authorized by this article.

(d) Unless contrary to the provisions of this article, regulations adopted by the dental board shall continue to apply to registered dental hygienists, registered dental hygienists in alternative practice, and registered dental hygienists in extended functions until other regulations are adopted by the dental hygiene board.  All references in those regulations to “board” shall mean the dental hygiene board, which shall solely enforce the regulations with respect to registered dental hygienists, registered dental hygienists in alternative practice, and registered dental hygienists in extended functions.