A parent (the applicant ) of a child may apply to the Registrar under this section for administrative assessment of child support for the child if:
(a) the applicant applies for both parents to be assessed in respect of the costs of the child; and
(b) the applicant is not living with the other parent as his or her partner on a genuine domestic basis (whether or not legally married to the other parent); and
(c) the applicant complies with any applicable requirements of section 26 (dealing with joint care situations) and section 26A (dealing with children cared for under child welfare laws); and
(d) if either parent of the child is not a resident of Australia on the day on which the application is made--the application meets the requirements of sections 29A and 29B.