N.Y. General Business Law § 204-a: Safety chain latches required

§ 204-a. Safety chain latches required. Every person, firm or

corporation engaged in the business of furnishing public lodging

accommodations in hotels, motels or motor courts shall install and

maintain, on the inside of each entrance door to every rental unit for

which there is a duplicate or master key which would afford entry to

said unit by one other than the occupant, a safety chain latch.