N.Y. Banking Law § 333

§ 333. Access to safe deposit boxes by certain fiduciaries. Where a\nsafe deposit box is let by a lessor to one or more persons acting as\nexecutors, administrators, trustees, guardians, a committee, or as\nconservators, the lessor may, except as otherwise expressly provided by\nthe terms of the lease or by the will or other instrument or order or\ndecree under which such person or persons may be acting, allow access\nthereto as follows:\n 1. By any one or more of the persons acting as executors or\nadministrators;\n 2. By any one or more of the persons acting as trustees, guardians, a\ncommittee, or as conservators when authorized in writing signed by the\nother person or all other persons so acting.\n 3. By any agent, authorized in a writing signed and duly acknowledged\nby the person, or if more than one, by all the persons acting as\nexecutors, administrators, trustees or guardians, a committee, or as\nconservators.\n