All hearings provided for in this division shall be conducted in accordance with the provisions of Chapter 5 (commencing with Section 11500), Part 1, Division 3, Title 2, of the Government Code, and the commissioner has all the powers granted therein, except that a hearing held in accordance with Section 30604 may be presided over by a hearing officer qualified under Section 11502 of the Government Code, or by any deputy designated by the commissioner.