Cal. Veh. Code § 2540

Any license issued may be suspended or revoked by the commissioner. The commissioner may refuse to issue a license to any applicant for the reasons set forth in Section 2531 or 2541. The proceedings under this article 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, and the commissioner shall have all the powers granted therein.