N.Y. Lien Law § 83
Every lien for a debt shall cease if the vessel navigates the western or northwestern lakes, or either of them, or the Saint Lawrence river, at the expiration of six months after the first of January next succeeding the time when the debt was contracted, and in case of any other vessel, at the expiration of twelve months after the debt was contracted. If, upon the expiration of the time herein limited in either of such cases, such vessel shall be absent from the port at which the debt was contracted, the lien shall continue until the expiration of thirty days after the return of such vessel to such port. If proceedings are instituted for the enforcement of the lien within the time herein limited, such lien shall continue until the termination of such proceedings.
N.Y. Lien Law § 83