For the purposes of subsection 19(1) of the Act, a liability is not a registrable maintenance liability if:
(a) it is a liability arising under an order made under section 66Q or 77 of the Family Law Act 1975 or under section 139 of the Assessment Act; and
(b) the person who is entitled to receive payments under the liability does not give to the Registrar a duly completed approved form requesting that the liability be enforced under the Act.