Public Utilities Code § 24251

The department shall provide for hearings upon request of any person who may be affected by its orders or acts under the provisions of this part and may provide for a stay thereof until a hearing may be had. All hearings held under this part shall be conducted in accordance with Chapter 5 (commencing with Section 11500), Part 1, Division 3, Title 2 of the Government Code, and the department shall have all of the powers granted therein.