Which statement represents the mandatory labeling requirement for hot equipment?

• A. Disposed of
• B. Set aside until they are cool
• C. Labeled with an appropriate sign
• D. All of the above

Answer: (C)

Hot equipment presents a burn hazard, so the immediate protection is to warn people with a clear sign on the tool or surface. An appropriate sign communicates that the surface is hot and should not be touched, which meets the mandatory labeling requirement. While setting the tool aside until it cools or disposing of it when appropriate are important safety practices, they are not the labeling requirement themselves. Therefore, labeling with an appropriate sign is the required action.