Cal. Health & Safety Code § 1569.22

Immediately upon the denial of any application for a license, the department shall notify the applicant in writing. Within 15 days after the department mails the notice, the applicant may present his or her written petition for a hearing to the department. Upon receipt by the department of the petition in proper form, the petition shall be set for hearing. The 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, and the department has all the powers granted therein.