6—(1) In this Part, “child” has the same meaning as in the Child Support Order.
(2) The Department may by regulations make provision about when a child is, or is not, to be regarded for the purposes of this Part as living apart from a parent.
(3) In this Part, “functions relating to child support” means functions of the Department under
(a)this Act or under any provision made under this Act;
(b)the Child Support Order or under any provision made under that Order;
(c)the Child Support (Northern Ireland) Order 1995 (NI 13) or under any provision made under that Order.