N.Y. Comp. Codes R. & Regs. tit. 21 § 1290.15
No person shall place any additional lock of any kind upon any window or interior or exterior door without the prior written consent of the manager and unless a key therefor is delivered to the Port Authority, nor make any change in any door or window lock or the mechanism thereof, except with the prior written consent of the manager. Upon the expiration or sooner termination of any agreement covering occupancy of space, the occupant shall surrender to the Port Authority any and all keys to interior and exterior doors or windows, whether said keys were furnished to or were otherwise procured by occupants and in the event of the loss of any keys furnished by the Port Authority the occupant shall pay to the Port Authority the Port Authority's cost of replacement thereof.
N.Y. Comp. Codes R. & Regs. Tit. 21 § 1290.15