(1) Subject to subsection (2), this Act does not apply to aircraft belonging to or exclusively employed in the service of the Government.

(2) The President may, by executive instrument, apply to that aircraft or in connection with that aircraft, to an aerodrome, land or premises an instrument made under this Act or the Regulations.

(3) The Director-General may, in the public interest and in writing, prescribe that a foreign aircraft and the airmen serving on that aircraft, be exempted from paragraph (a) of subsection (4) of section 40.

(4) Subsection (3) does not confer an exemption from observing air traffic regulations.

(5) A provision in this Act, or in an instrument made under this Act shall not prejudice or affect the rights, powers and privileges of a light-house authority.