California Code, Business and Professions Code - BPC § 136

(a) Each person holding a license, certificate, registration, permit, or other authority to engage in a profession or occupation issued by a board within the department shall notify the issuing board at its principal office of any change in the person's mailing address within 30 days after the change, unless the board has specified by regulations a shorter time period.

(b) Except as otherwise provided by law, failure of a licensee to comply with the requirement in subdivision (a) constitutes grounds for the issuance of a citation and administrative fine, if the board has the authority to issue citations and administrative fines.