Tankerman · Transfer — Emergency Shutdown
The agreed emergency-shutdown signal during a transfer is used when:
- AAn uncontrolled discharge, fire, or other emergency requires immediate stop✓ Correct
- BTopping off the last tank
- CSwitching tanks normally
- DThe watch changes
Explanation
Both sides agree in advance on a clear emergency-stop signal so flow can be halted instantly in a spill, fire, hose failure, or mooring emergency. It must be understood by all watchstanders.
Authority: 33 CFR 156.120; ISGOTT
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