If a child-support order issued by a tribunal of this state is modified by a tribunal of another state that assumed jurisdiction pursuant to the Uniform Interstate Family Support Act, a tribunal of this state:
A. may enforce its order that was modified only as to arrears and interest accruing before the modification;
B. may provide appropriate relief for violations of its order that occurred before the effective date of the modification; and
C. shall recognize the modifying order of the other state, upon registration, for the purpose of enforcement.