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CO Poisoning Situations—Blocked Exhaust or Another Boat's Exhaust

Carbon monoxide poisoning - blocked exhaust outlets
Blocked Exhaust Outlets can cause carbon monoxide to accumulate in the cabin and cockpit area.
Carbon monoxide poisoning - another boat's exhaust
Another Vessel's Exhaust that is alongside can emit carbon monoxide into the cabin and cockpit of your vessel. Your vessel should be at least 20 feet from a vessel that is running a generator or engine.