(1) As stated in section 66D, a step-parent of a child has a duty of maintaining a child if, and only if, there is an order in force under this section.
(2) A court having jurisdiction under this Part may, by order, determine that it is proper for a step-parent to have a duty of maintaining a step-child.
(3) In making an order under subsection (2), the court must have regard to these (and no other) matters:
(a) the matters referred to in sections 60F, 66B and 66C; and
(b) the length and circumstances of the marriage to, or relationship with, the relevant parent of the child; and
(c) the relationship that has existed between the step-parent and the child; and
(d) the arrangements that have existed for the maintenance of the child; and
(e) any special circumstances which, if not taken into account in the particular case, would result in injustice or undue hardship to any person.