For the purposes of Part 5 of the Family Assistance Administration Act, the following decisions are taken not to be decisions of an officer under the family assistance law:
(a) any decision under this Division;
(b) any decision under Part 8B of that Act to pay, or not to pay, an amount of family assistance as mentioned in subsection 57GI(4) of this Act;
(c) any decision under Part 8B of that Act that is related to a decision mentioned in paragraph (b).