N.Y. Fam. Ct. Act § 580-303

§ 580-303. Application of law of state. Except as otherwise provided\nin this article, a responding tribunal of this state shall:\n 1. apply the procedural and substantive law generally applicable to\nsimilar proceedings originating in this state and may exercise all\npowers and provide all remedies available in those proceedings; and\n 2. determine the duty of support and the amount payable in accordance\nwith the law and support guidelines of this state.\n