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, a tribunal of this State:

1. (1) May enforce its order that was modified only as to arrears and interest accruing before the modification;
2. (2) May provide appropriate relief for violations of its order which occurred before the effective date of the modification; and
3. (3) Shall recognize the modifying order of the other state, upon registration, for the purpose of enforcement.

69 Del. Laws, c. 238, § 1; 71 Del. Laws, c. 216, § 155; 75 Del. Laws, c. 64, § 1