移动式和固定式工业剪刀式升降机在各种应用中提升、降低和定位材料和人员，但不同于其他运输工具，如高空作业平台（AWP）和电梯。MH29。1已被修订，以更好地说明人员操作，并可通过工业剪刀式升降机提升或降低。本标准将码头升降机、工作通道升降机和升降台定义为三类工业剪刀式升降机，并确定了它们的区别和相似性。 制造商、用户、所有者和运营商的责任已经重新排序、巩固和加强。最后，本标准中的要求在必要时进行了修订，以确保使用强制性语言进行说明。

Mobile and stationary industrial scissors lifts raise, lower and position materials and personnel in various applications but are different from other conveyances such as aerial work platforms (AWP) and elevators. MH29.1 has been revised to better illustrate that personnel operate and may themselves be raised or lowered by industrial scissor lifts. This standard now defines dock lifts, work access lifts and lift tables as the three categories of industrial scissors lifts and identifies their differences and similarities. The responsibilities of manufacturers, users, owners and operators have been reordered, consolidated and enhanced. Lastly, the requirements within the standard have been revised where needed to ensure they are stated using mandatory language.