A young person is taken to be a dependent child of a member of a couple (the adult ) for the purposes of Part 2.10 (parenting payment) if:
(a) the young person is an inmate of a mental hospital; and
(b) the mental hospital is either:
(i) maintained by the Commonwealth, a State, the Australian Capital Territory or the Northern Territory; or
(ii) mainly dependent upon financial assistance from the Commonwealth, a State, the Australian Capital Territory or the Northern Territory; and
(c) the adult is making a reasonable contribution towards the expenses of maintaining the young person; and
(d) the Secretary determines that the young person is to be taken to be a dependent child of the adult.