Cal. Business and Professions Code § 4980.399

(a) Except as provided in subdivision (a) of Section 4980.398, each applicant and registrant shall obtain a passing score on a board-administered California law and ethics examination in order to qualify for licensure. (b) A registrant shall participate in a board-administered California law and ethics examination before their registration renewal. (c) If an applicant fails the California law and ethics examination, they may retake the examination, upon payment of the required fees, without further application. (d) The board shall not issue a subsequent registration number unless the applicant has passed the California law and ethics examination. (e) A registrant shall complete a minimum of three hours of continuing education on the subject of California law and ethics during each renewal period to be eligible to renew their registration, regardless of whether they have passed the California law and ethics examination. The coursework shall be obtained from a board-accepted provider of continuing education, as specified in Section 4980.54.