Tankerman · Pollution — Scuppers
During an oil transfer, deck scuppers must be:
- ALeft fully open to drain rainwater
- BPlugged or closed to keep any spill on deck✓ Correct
- CRemoved entirely
- DConnected to the cargo line
Explanation
Scuppers are plugged before transfer so that any spilled oil is retained on deck rather than running overboard, where it would become a reportable discharge.
Authority: Tank Vessel Operations (33 CFR 155.320)
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