"instrument" means an instrument (including a statutory rule or an
environmental planning instrument) made under an Act, and includes an
instrument made under any such instrument.
(2) In this Act--
(a) a reference
to a function includes a reference to a power, authority and duty, and
(b) a
reference to the exercise of a function includes, in relation to a duty, a
reference to the performance of the duty.
(3) The Dictionary in Schedule 4
defines certain terms used in Acts and instruments.
