The provisions of §§ 46.2-424, 46.2-447 through 46.2-452, 46.2-456 through 46.2-458, 46.2-461, and 46.2-463 shall apply to all policies of insurance or other evidence of financial responsibility hereunder except that whenever the word “Commissioner” appears in any of said sections it shall be taken to mean the Director of the Department of Aviation; and whenever the word “Department” or “Department of Motor Vehicles” appears, it shall also be taken to mean the Department of Aviation and “vehicle” or “motor vehicle” shall be taken to mean “aircraft.”