A tribunal of this state shall recognize a modification of its earlier child support order by a tribunal of another state which assumed jurisdiction pursuant to a law substantially similar to this act and, upon request, except as otherwise provided in this act, shall:

1. (a) Enforce the order that was modified only as to amounts accruing before the modification;
2. (b) enforce only nonmodifiable aspects of that order;
3. (c) provide other appropriate relief only for violations of that order which occurred before the effective date of the modification; and
4. (d) recognize the modifying order of the other state, upon registration, for the purpose of enforcement.

L. 1994, ch. 301, § 77; July 1.