N.Y. CVP Law § 3130

§ 3130. Use of interrogatories. 1. Except as otherwise provided\nherein, after commencement of an action, any party may serve upon any\nother party written interrogatories. Except in a matrimonial action, a\nparty may not serve written interrogatories on another party and also\ndemand a bill of particulars of the same party pursuant to section 3041.\nIn the case of an action to recover damages for personal injury, injury\nto property or wrongful death predicated solely on a cause or causes of\naction for negligence, a party shall not be permitted to serve\ninterrogatories on and conduct a deposition of the same party pursuant\nto rule 3107 without leave of court.\n 2. After the commencement of a matrimonial action or proceeding, upon\nmotion brought by either party, upon such notice to the other party and\nto the non-party from whom financial disclosure is sought, and given in\nsuch manner as the court shall direct, the court may order a non-party\nto respond under oath to written interrogatories limited to furnishing\nfinancial information concerning a party, and further provided such\ninformation is both reasonable and necessary in the prosecution or the\ndefense of such matrimonial action or proceeding.\n