(1)Subject to the provisions of this section—
(a)Parts I and II of this Act, except sections thirty-four, thirty-seven to forty-one (both inclusive), forty-eight to fifty (both inclusive), eighty-one and ninety-one, and
(b)sections two hundred and seventeen to two hundred and twenty-five (both inclusive), two hundred and twenty-eight, two hundred and twenty-nine, two hundred and thirty-eight and two hundred and forty-one of this Act,
shall apply to vehicles and persons in the public service of the Crown.
(2)Section two hundred and twenty-six of this Act, in so far as it provides for the production of test certificates and the giving of names and addresses, shall apply to a person in connection with a vehicle to which section sixty-six of this Act applies notwithstanding that he or the driver is or was at any material time in the public service of the Crown.
(3)Sections sixty-nine and seventy-three of this Act, and section ninety-seven thereof (in so far as it imposes restrictions on persons under twenty-one years of age with respect to the driving of heavy locomotives, light locomotives, motor tractors or heavy motor cars) shall not apply in the case of motor vehicles owned by the Admiralty, the War Department or the Air Ministry, and used for naval, military or air force purposes, or in the case of vehicles so used while being driven by persons for the time being subject to the orders of a member of the armed forces of the Crown.
(4)The Minister may by regulations vary in relation to vehicles used for naval, military or air force purposes while being driven by persons for the time being subject to the orders of a member of the armed forces of the Crown the provisions of any statutory provision imposing a speed limit on motor vehicles ; but regulations under this subsection may provide that any variation made by the regulations shall have effect subject to such conditions as may be specified in the regulations.
(5)For the purpose of proceedings for an offence under this Act in connection with a vehicle in the public service of the Crown, being proceedings against a person other than the driver or rider of the vehicle, the person nominated in that behalf by the department in whose service the vehicle is used shall be deemed to be the person actually responsible unless it is shown to the satisfaction of the court that the driver or rider only was responsible.