Safety, Fire & Survival · Risk — Lockout/Tagout
Before working on machinery that could start or release energy, the crew should:
- ALeave it running for convenience
- BIsolate and lock out/tag out the energy sources so the equipment cannot be started or energized during the work✓ Correct
- CRely on a verbal request not to start it
- DDisable only the alarms
Explanation
Lockout/tagout physically isolates and secures energy sources (electrical, hydraulic, steam, stored mechanical) with locks and warning tags so machinery cannot be inadvertently started or release stored energy while someone is working on it — preventing crushing, electrocution, and entanglement.
Authority: Safety management practice; ISM Code
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