This Standard establishes performance requirements for electric chain hoists for vertical lifting service involving material handling of freely suspended (unguided) loads using load chain of the roller or welded link types with one of the following types of suspension: (1) lug; (2) hook or clevis; (3) trolley. This Standard is applicable to hoists manufactured after the date on which this Standard is issued. It is not applicable to: (1) damage or malfunctioning hoists; (2) hoists that have been misused or abused; (3) hoists that have been altered without authorization of the manufacturer a qualified person; (4) hoists used for lifting or supporting people; (5) hoists used for the purpose of drawing both the load and hoist up or down the hoist's own load chain(s); and (6) hoists used for marine and other applications as required by the Department of Defense (DOD). The standard includes an appendix on Electric Chain Hoists used in marine and other applications as required by the Department of Defense (DOD).