§ 580-604. Choice of law. (a) Except as otherwise provided in
subdivision (d) of this section, the law of the issuing state or foreign
country governs:

(1) the nature, extent, amount and duration of current payments under
a registered support order;

(2) the computation and payment of arrearages and accrual of interest
on the arrearages under the support order; and

(3) the existence and satisfaction of other obligations under the
support order.

(b) 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.

(c) A responding tribunal of this state shall apply the procedures and
remedies of this state to enforce current support and collect arrears
and interest due on a support order of another state or a foreign
country registered in this state.

(d) After a tribunal of this state or another state determines which
is the controlling order and issues an order consolidating arrears, if
any, a tribunal of this state shall prospectively apply the law of the
state or foreign country issuing the controlling order, including its
law on interest on arrears, on current and future support, and on
consolidated arrears.