N.Y. Domestic Relations Law § 203: Judgment for separation revocable

§ 203. Judgment for separation revocable. Upon the joint application

of the parties, accompanied with satisfactory evidence of their

reconciliation, a judgment for a separation, forever, or for a limited

period, rendered as prescribed in this article, may be revoked at any

time by the court which rendered it, subject to such regulations and

restrictions as the court thinks fit to impose.