(1) Subject to this Part, if:
(a) an application is made to the Registrar under section 98B; and
(b) the Registrar is satisfied:
(i) that one, or more than one, of the grounds for departure referred to in subsection (2) exists; and
(ii) that it would be:
(A) just and equitable as regards the child, the liable parent, and the carer entitled to child support; and
(B) otherwise proper;
to make a particular determination under this Part;
the Registrar may make the determination.
(2) For the purposes of subparagraph (1)(b)(i):
(a) the grounds for departure from the provisions of this Act relating to administrative assessment of child support in relation to the child are the same as the grounds for departure set out in subsection 117(2); and
(b) subparagraph 117(2)(b)(ib) has effect subject to subsections 117(3A) to (3C).
(3) Subsections 117(4) to (9) (inclusive) apply to the Registrar in the exercise of his or her powers under this Division as if:
(a) any reference in those subsections to the court were a reference to the Registrar; and
(b) any reference to an order were a reference to a determination.