N.Y. Fam. Ct. Act § 580-211

§ 580-211. Continuing exclusive jurisdiction to modify spousal-support\norder. (a) A tribunal of this state issuing a spousal-support order\nconsistent with the law of this state has continuing, exclusive\njurisdiction to modify the spousal-support order throughout the\nexistence of the support obligation.\n (b) A tribunal of this state may not modify a spousal-support order\nissued by a tribunal of another state or a foreign country having\ncontinuing, exclusive jurisdiction over that order under the law of that\nstate or foreign country.\n (c) A tribunal of this state that has continuing, exclusive\njurisdiction over a spousal-support order may serve as:\n (1) an initiating tribunal to request a tribunal of another state to\nenforce the spousal-support order issued in this state; or\n (2) a responding tribunal to enforce or modify its own spousal-support\norder.\n