2007 ORS § 110.411¹
Choice of law
(1) The law of the issuing state governs the nature, extent, amount and duration of current payments and other obligations of support and the payment of arrearages under the order.
(2) In a proceeding for arrearages, the statute of limitation under the laws of this state or of the issuing state, whichever is longer, applies. [1993 c.449 §38]