Which tag-out label indicates equipment is not to be used until cleared?

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Tag-out labels communicate whether equipment may be operated and how serious the hazard is. When a piece of equipment is tagged out, the label you place is meant to tell others not to use it until the hazard is addressed and an authorized person clears the tag. The label marked Danger conveys a high-risk condition that could cause serious injury or death if the equipment were energized or moved. Because of that, it explicitly means: do not operate or use until the hazard is evaluated, the issue is resolved, and the tag is removed by the appropriate authority.

The other labels don’t convey the same prohibition. Out-of-Commission describes a device as not functioning, but that’s a status note rather than a standard safety tag directing a hold on operation. Caution warns of a potential hazard but is not an outright instruction to stay away from the equipment. Out-of-Calibration points to measurement inaccuracy, which affects reliability but doesn’t automatically imply a blanket prohibition on use.