New York Consolidated Laws, Banking Law - BNK § 333. Access to safe deposit boxes by certain fiduciaries

1. By any one or more of the persons acting as executors or administrators;

2. By any one or more of the persons acting as trustees, guardians, a committee, or as conservators when authorized in writing signed by the other person or all other persons so acting.

3. By any agent, authorized in a writing signed and duly acknowledged by the person, or if more than one, by all the persons acting as executors, administrators, trustees or guardians, a committee, or as conservators.