(1) This section is made for the definition of Commonwealth aircraft in subsection 4(1) of the Act.
(2) The ensign for an aircraft is:
(a) for an aircraft in the service of the Australian Border Force--the flag prescribed by section 11; and
(b) otherwise--the Australian National Flag.
(3) The insignia for an aircraft is:
(a) for an aircraft in the service of the Australian Border Force--the words "AUSTRALIAN BORDER FORCE" displayed in letters at least 150 millimetres high; and
(b) for an aircraft in the service of the Australian Defence Force--the Australian Air Force roundel (displayed in any colour or combination of colours) that forms part of the flag:
(i) appointed under section 5 of the Flags Act 1953 to be the ensign of the Australian Air Force; and
(ii) known as the Royal Australian Air Force Ensign.