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

Power-opening of a hoistway door shall conform to the following: 1. Power-opening shall occur only at the landing where the car is stopping, or is leveling or is at rest, and shall start only when the car is within the landing zone or is within the leveling or is at rest, and shall start only when the car is within the landing zone or is within the leveling zone where an automatic car-leveling device is provided. 2. Power-opening may be initiated automatically through control circuits provided that the car is being automatically stopped or leveled and provided that, when stopping under normal operating conditions, the car shall be at rest or substantially level with the landings before the hoistway door is in the fully open position. 3. Sequence operation of a vertical sliding hoistway door and adjacent car door or gate shall be provided where required by Rule 112.6. Ibid