Commonwealth Consolidated Acts
(a)
would, apart from this section, have an invalid application; but
(b) also has at least one valid application;
it is the Parliament's intention that the provision is not to have the invalid application, but is to have every valid application.
(a) apart from this section, it is clear, taking
into account the provision's context and the purpose or object
underlying this Act, that the provision was intended to have that
valid application only if every invalid application, or a particular
invalid application, of the provision had also been within the
Commonwealth's legislative power; or
(b) the provision's operation in relation to that valid application would
be different in a substantial respect from what would have been its
operation in relation to that valid application if every invalid
application of the
provision had been within the Commonwealth's legislative power.
(a) one or more
particular persons, things, matters, places, circumstances or cases; or
(b) one or more classes (however defined or determined) of persons,
things, matters, places, circumstances or cases.
"valid application", in relation to a provision, means an application which, if it were the provision's only application, would be within the Commonwealth's legislative power.