§576B-611 Modification of child support order of another state. (a) If section 576B-613 does not apply, upon petition a tribunal of this State may modify a child support order issued in another state that is registered in this State if, after notice and hearing, the tribunal finds that:
(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 this State and the order may be enforced and satisfied in the same manner.
(c) A tribunal of this State may not modify any aspect of a child support order that may not be modified under the law of the issuing state, including the duration of the obligation of support. If two or more tribunals have issued child support orders for the same obligor and same child, the order that controls and shall be recognized under section 576B‑207 establishes the aspects of the support order that are nonmodifiable.
(d) In a proceeding to modify a child support order, the law of the state that is determined to have issued the initial controlling order governs the duration of the obligation of support. The obligor's fulfillment of the duty of support established by that order shall preclude imposition of a further obligation of support by a tribunal of this State.
(e) On the issuance of an order by a tribunal of this State modifying a child support order issued in another state, the tribunal of this State becomes the tribunal having continuing, exclusive jurisdiction.
(f) Notwithstanding subsections (a) through (e) and section 576B-201(b), a tribunal of this State retains jurisdiction to modify an order issued by a tribunal of this State if: