本美国国家标准规定了某些类型和尺寸的移动式升降工作平台（MEWPs）的安全要求、预防措施及其验证方法，这些平台用于在工作地点安置人员及其必要的工具和材料。它包含MEWP首次投入使用前应进行的结构设计计算和稳定性标准、施工、安全检查和测试。

This American National Standard specifies safety requirements and preventive measures, and the means for their verification, for certain types and sizes of mobile elevating work platforms (MEWPs) Intended to position personnel, along with their necessary tools and materials, at work locations. It contains the structural design calculations and stability criteria, construction, safety examinations and tests that shall be applied before a MEWP is first put into service.