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

Freight elevators shall be designed for one of the following classes of loading: 1. Class A - General Freight Loading. Where the load is distributed, the weight of any single piece of freight or of any single hand truck and its load is not more than one-quarter (1/4) the rated load of the elevator, and the load is handled on an off the car platform manually or by means of hand trucks. For this class of loading, the rated load shall be based on not less than fifty (50) pounds per square foot of inside net platform area. 2. Class B - Motor-Vehicle Loading. Where the elevator is used solely to carry automobiles up to the rated capacity of the elevator. For this class of loading, the rated load shall be based on not less than thirty (30) pounds per square foot of inside net platform area. 3. There are three types of class C loadings as follows: Class C-1 - Industrial Truck Loading Where truck is carried by the elevator. Class C-2 - Industrial Truck Loading Where truck is not carried by the elevator but used only for loading and unloading. Class C-3 - Other Loading with Heavy Concentrations where truck is not used. 73 TEXTO EN ESPAÑOL que sean accionados por el regulador de velocidad se mantendrán en su posición abierta hasta tanto sean reajustados manualmente. Los interruptores accionados por el mecanismo de seguridad del carro serán de un tipo que no reajuste a menos que el mecanismo de seguridad se haya llevado a su posición de desconectado. Ibid