Reglamento General de Seguridad e Higiene Industrial, Cap. IV -- Ascensores de personas. No incluido en el índice bajo Ley 149 de 12 dic, 2005

Operation of an elevator in a leveling or truck zone at any landing by a car-leveling or truck-zoning device, when the landing doors and/or the car doors or gates are not in the closed position, is permissible subject to the following: 1. Operating devices of manually operated carleveling devices or truck-zoning devices shall be of the continuous-pressure type located in the car. 2. Car-platform guards conforming to Section 203, Rule 203.9 shall be provided; and where a car-leveling device is used, landing sill guards conforming to Part I, Section 110,