Business and Professions Code § 7155

Violation of any provision of this chapter by a home improvement salesperson constitutes cause for disciplinary action. The registrar may suspend or revoke the registration of the home improvement salesperson if he or she is found to be in violation. The disciplinary proceedings shall be conducted in accordance with Chapter 5 (commencing with Section 11500) of Part 1 of Division 3 of Title 2 of the Government Code.