New York Laws
Article 11 - Action for Separation
203 - Judgment for Separation Revocable.

ยง 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.