(1)Where—
(a)there is more than one person with care of a qualifying child; and
(b)one or more, but not all, of them have parental responsibility for (or, in Scotland, parental rights over) the child;
no application may be made for a maintenance assessment with respect to the child by any of those persons who do not have parental responsibility for (or, in Scotland, parental rights over) the child.
(2)Where more than one application for a maintenance assessment is made with respect to the child concerned, only one of them may be proceeded with.
(3)The Secretary of State may by regulations make provision as to which of two or more applications for a maintenance assessment with respect to the same child is to be proceeded with.