(1) Section 51 does not apply in relation to a responsible person in relation to whom a determination is to be or has been made under section 49 or 50 if:
(a) in a case where subparagraph 49(1)(a)(i) or 50(1)(a)(i) applies in relation to the determination--the day the application referred to in that subparagraph is made is after the end of the maximum interim period for the determination; or
(b) in a case where subparagraph 49(1)(a)(ii) or 50(1)(a)(ii) applies in relation to the determination--the day referred to in that subparagraph is after the end of the maximum interim period for the determination.
(2) Section 51 also does not apply in relation to a responsible person in relation to whom a determination (a later determination ) has been made under section 49 or 50 if:
(a) an earlier determination determined the responsible person's percentage of care for a child under that section for the purposes of subsections 51(3) and (4); and
(b) the later determination is made after the end of the maximum interim period for the earlier determination; and
(c) the later determination relates to the same care arrangement as the earlier determination.