1CEnsign and insignia (Act s 4)

#### 1C Ensign and insignia (Act s 4) (1) For the definition of Commonwealth aircraft in section 4 of the Act: (a) the Customs flag is the ensign for an aircraft in the service of Customs; and (b) the Australian National Flag is the ensign for any other aircraft; and (c) the word ‘CUSTOMS’, displayed in letters at least 150 millimetres high, is the insignia for an aircraft in the service of Customs; and (d) 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; is the insignia for an aircraft in the service of the Australian Defence Force. (2) For the definition of Commonwealth ship in section 4 of the Act: (a) the Customs flag is the ensign for a ship in the service of Customs; and (b) the ensign of the Royal Australian Navy is the ensign for a ship in the service of the Royal Australian Navy; and (c) the Australian National Flag is the ensign for any other ship.