RSA 546-B:42 Choice of Law.

I. Except as otherwise provided in paragraph IV, the law of the issuing state or foreign country governs:
(a) The nature, extent, amount, and duration of current payments under a registered support order;
(b) The computation and payment of arrearages and accrual of interest on the arrearages under the support order; and
(c) The existence and satisfaction of other obligations under the support order.
II. In a proceeding for arrears under a registered support order, the statute of limitation of this state or of the issuing state or foreign country, whichever is longer, applies.
III. A responding tribunal of this state shall apply the procedures and remedies of this state to enforce current child support and collect arrears and interest due on a support or