§ 315. Service by publication authorized. The court, upon motion without notice, shall order service of a summons by publication in an action described in section 314 if service cannot be made by another prescribed method with due diligence.
N.Y. Civil Practice Law & Rules Law § 315, under Jurisdiction and Service, Appearance and Choice of Court.
N.Y. Civil Practice Law & Rules Law § 315
§ 315. Service by publication authorized. The court, upon motion without notice, shall order service of a summons by publication in an action described in section 314 if service cannot be made by another prescribed method with due diligence.