Except for the provisions of Chapter 9 (§ 5.1-89 et seq.) of this title, the Department shall have the authority to enforce any provision of this title and any rules and regulations promulgated by the Board in reference to aircraft, airfields, pilots and other similar subjects. Said rules and regulations, and enforcement actions taken in connection therewith, shall be in accordance with the substantive and procedural requirements of the Administrative Process Act, Chapter 40 (§ 2.2-4000 et seq.) of Title 2.2.