Lockout/Tagout (LOTO) in maintenance is designed to:

• A. Methods for documenting incidents after maintenance.
• B. Procedures to isolate energy sources to prevent accidental start-up during maintenance.
• C. A safety device requiring continuous operator input to keep the train moving.
• D. A documented incident report.

Answer: (B)

Lockout/Tagout in maintenance is designed to isolate energy sources to prevent accidental start-up during maintenance. By disconnecting or blocking the various forms of energy that power equipment—electrical, hydraulic, pneumatic, thermal, and others—and securing the system with a lock or warning tag, workers are protected from unexpected energization or the release of stored energy while they service the machine. This preventive control keeps equipment safely de-energized until maintenance is finished and the area is verified safe. It’s not about documenting incidents after work, nor about a device that keeps a machine running with continuous operator input, nor simply about recording an incident report. The aim is to control hazardous energy at its source to protect workers.