(1) For the purposes of the administration of the Defence Force, the Secretary and the Chief of the Defence Force together may issue instructions known as Defence Instructions .
(2) A document purporting to be a Defence Instruction, or a copy of a Defence Instruction, is taken to be a Defence Instruction unless the contrary is established.
(3) Despite section 46AA of the Acts Interpretation Act 1901 , a Defence Instruction may make provision for or in relation to a matter by applying, adopting or incorporating any matter contained in an instrument or other writing as in force or existing from time to time.