Use lockout/tagout devices to:

Use lockout/tagout devices to:

• A. Document the date and time firefighters were on scene.
• B. Pull and store the main meter.
• C. Indicate the flow of gas.
• D. Ensure utility equipment is off.

Answer: (D)

Lockout/tagout devices are used to control hazardous energy so that equipment cannot be energized while people are working on it or entering a space. The lock physically prevents switches or valves from being opened, while the tag communicates who placed the lock and why, so others know not to restore power or start the equipment. In firefighting operations, this protects responders from unexpected energy release—electrical, mechanical, or gas-related—that could cause shock, burns, or explosions. Therefore, the purpose is to ensure utility equipment remains off until it’s safe to proceed. The other options don’t fit because lockout/tagout isn’t about documenting times, manipulating meters, or indicating gas flow.

Lockout/tagout devices are used to control hazardous energy so that equipment cannot be energized while people are working on it or entering a space. The lock physically prevents switches or valves from being opened, while the tag communicates who placed the lock and why, so others know not to restore power or start the equipment. In firefighting operations, this protects responders from unexpected energy release—electrical, mechanical, or gas-related—that could cause shock, burns, or explosions. Therefore, the purpose is to ensure utility equipment remains off until it’s safe to proceed.

The other options don’t fit because lockout/tagout isn’t about documenting times, manipulating meters, or indicating gas flow.