Ventilation System Requirements
- All gasoline-powered vessels, constructed in a way that would entrap fumes, must have at least two ventilation ducts fitted with cowls to remove the fumes. At least one exhaust duct must extend from the open atmosphere to the lower bilge. At least one intake duct must extend from a point at least midway to the bilge or below the level of the carburetor air intake.
- If your vessel is equipped with a power ventilation system, turn it on for at least four minutes after fueling and before starting your engine. Also turn the ventilation system on anytime you are operating your vessel at less than cruising speed.
- If your vessel is not equipped with a power ventilation system (for example, a personal watercraft), open the engine compartment and sniff for gasoline fumes before starting the engine.
Vessels built after July 31, 1980, which contain power exhaust blowers in gasoline engine compartments, must have the warning sticker placed near the instrument panel.