Cal. Health & Safety Code § 1596.879

Immediately upon the denial of any application for a license or for a special permit, 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, the petition shall be set for hearing. The hearing 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 in that chapter.