Section 6-611. Modification of child support order of another state.
(a) After a child support order issued in another state has been registered in the commonwealth, the responding tribunal of the commonwealth may modify that order only if section 6-613 does not apply and after notice and hearing it finds that:
(1) the following requirements are met:
(i) the child, the individual obligee, and the obligor do not reside in the issuing state;
(ii) a petitioner who is a nonresident of the commonwealth seeks modification; and
(iii) the respondent is subject to the personal jurisdiction of the tribunal of the commonwealth; or
(2) the child, or a party who is an individual, is subject to the personal jurisdiction of the tribunal of the commonwealth and each of the parties who are individuals has filed a written consent in the issuing tribunal for a tribunal of the commonwealth to modify the support order and assume continuing, exclusive jurisdiction over such order; provided, however, that if the issuing state is a foreign jurisdiction that has not enacted a law or established procedures substantially similar to the procedures under this chapter, the consent otherwise required of an individual residing in the commonwealth shall not be required for the tribunal to assume jurisdiction to modify the child support order.
(b) Modification of a registered child support order is subject to the same requirements, procedures, and defenses that apply to the modification of an order issued by a tribunal of the commonwealth and the order may be enforced and satisfied in the same manner.
(c) A tribunal of the commonwealth may not modify any aspect of a child support order that may not be modified under the law of the issuing state. If two or more tribunals have issued child support orders for the same obligor and child, the order that controls and must be so recognized under section 2-207 establishes the aspects of the support order which are nonmodifiable.
(d) On issuance of an order modifying a child support order issued in another state, a tribunal of the commonwealth becomes the tribunal of continuing, exclusive jurisdiction.
(e) Within thirty days after issuance of a modified child support order, the party obtaining the modification shall file a certified copy of the order with the issuing tribunal which had continuing, exclusive jurisdiction over the earlier order, and in each tribunal in which the party knows that earlier order has been registered.