(1) A court must not,
at any time, make, revive or vary a child maintenance order in relation to a
child on the application of a person (the applicant ) against, or in favour
of, a person (the respondent ) if an application could properly be made, at
that time, under the Child Support (Assessment) Act for administrative
assessment of child support (within the meaning of that Act) —
(a) by
the applicant seeking payment of child support for the child from the
respondent; or
(b) by
the respondent seeking payment of child support for the child from the
applicant.
(2) Subsection (1) has
effect whether or not an application for administrative assessment of child
support for the child has in fact been made (whether by the applicant, the
respondent or another person).