(1) Unless otherwise provided by this Act, a person who is permitted to give a direction under this Act may give the direction orally or in writing (including by electronic means).
(2) Unless otherwise provided by this Act, a direction that is given under this Act in writing is not a legislative instrument.
(3) A later direction overrides an earlier direction to the extent of any inconsistency.
When Defence Force members need not comply
(4) A member of the Australian Defence Force is not required to comply with a direction given to the member under this Act to the extent that the direction is inconsistent with an order or other exercise of command under sections 8 and 9 of the Defence Act 1903 .