California Code, Business and Professions Code - BPC § 1621

(a) Possession of a valid license to practice dentistry in this state or possession of a valid license in one of the registered dental assistant categories licensed under this chapter.

(b) Practice as a licensed dentist or in a licensure category described in subdivision (a) for at least five years preceding the examiner's appointment.

(c) Hold no position as an officer or faculty member at any college, school, or institution that provides instruction in the same licensure category as that held by the examiner. This subdivision shall not apply to a portfolio examiner.