N.Y. Lab. Law § 33

§ 33. Service of notice. Whenever the commissioner or board or any\nperson affected by the provisions of this chapter is required to give\nnotice in writing to any person, such notice may be given by mailing it\nin a letter addressed to such person at his last known place of business\nor by delivering it to him personally. Notice to a partnership may be\ngiven to any of the partners and notice to a corporation may be given to\nany officer or agent thereof upon whom a summons may be served as\nprovided by the civil practice law and rules. Whenever an order or\ndemand of the department is required to be served it shall be served in\nthe manner hereinbefore provided for the service of a notice or by\ndelivering it to any person of suitable age and discretion in charge of\nthe premises affected by such order, or if no person is found in charge\nby affixing a copy thereof conspicuously upon the premises.\n