Section 57 - Bells; mail receptacles1. Whenever bells are installed at the entrance to any multiple dwelling or at any door of an individual apartment in a multiple dwelling, they shall be kept in good working order.2. Whenever the owner of a multiple dwelling has not arranged for mail to be delivered to occupants thereof by himself, his agent or employees, arrangements shall be made for the delivery of such mail in conformity with regulations of the post office department.N.Y. Mult. Dwell. Law § 57