(a) the day stated for the purpose in the determination; or
(b) if no day is statedthe day on which it is made.
(a) a provision of this Act refers to a determination made or other act or
thing done by the Minister; and
(b) no other provision of this Act expressly authorises the Minister to
make such a determination or do such an act or thing;
this subsection authorises the Minister to make such a determination or do such an act or thing.