Customs Regulation 2015
For the definition of Commonwealth ship in subsection 4(1) of the Act, the ensign for a ship is:
(a) for a ship in the service of the Australian Border Force - the flag prescribed by section 11 ; and
(b) for a ship in the service of the Royal Australian Navy - the ensign of the Royal Australian Navy; and
(c) otherwise - the Australian National Flag.
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