56.   Recognition of order modified in another state.

   If a child support order issued by a tribunal of this State is modified by a tribunal of another state which assumed jurisdiction pursuant to the "Uniform Interstate Family Support Act," P.L.2016, c.1 (C.2A:4-30.124 et al.), 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 which 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.
 
   L.2016, c.1, s.56.