OUPV & 100-Ton Master · Operations
The most effective action to prevent carbon monoxide poisoning of passengers on a vessel at idle or station-keeping is to:
- ARun the engine faster
- BKeep occupied spaces ventilated and keep people away from exhaust outlets, especially during 'station wagon effect' conditions✓ Correct
- CClose all hatches and windows
- DAdd more passengers aft
Explanation
Carbon monoxide is colorless and odorless and can accumulate in cabins and on swim platforms, including via the 'station wagon effect' that draws exhaust back aboard. Ventilation, CO detectors, and keeping people clear of exhaust outlets prevent poisoning.
Authority: USCG Boating Safety; CO hazard guidance
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