This Standard covers underhung cranes, top-running bridge and gantry cranes with underhung trolleys, traveling wall cranes, jib cranes, monorail systems, overhead hoists, and hoists with integral trolleys used in nuclear facilities. All of the above cranes, whether single or multiple girder, are covered by this Standard with the exception of multiple girder cranes with both top-running bridge and trolley, which are covered by ASME NOG-1. This standard is not intended to be submitted for consideration as an ISO or ISO/IEC JTC-1 standard.