(1) This Act extends to every external Territory and, except so far as the contrary intention appears, to acts, omissions, matters and things outside Australia, whether or not in a foreign country.
(2) Except where otherwise expressly provided, this Act extends to matters and things whether occurring before or after the commencement of this Act.
(3) In subsection (1), a reference to this Act includes a reference to the Taxation Administration Act 1953 to the extent to which that Act relates to this Act.