N.Y. Family Court Act § 580-604: Choice of law

§ 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.