In factory buildings erected before or after October 1, 1913; in mercantile establishments in buildings erected before or after November 1, 1920.
All elevator cars, the travel of which exceeds 25 feet, shall be equipped with a safety device of an approved type, attached to the car frame beneath the platform or on the car beam.
Exception:
Dumbwaiters.
N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 8-2.26