Gasoline fuel and fumes are extremely hazardous! Fuel and fumes need only a single spark to cause an explosion or to start a blaze. Spilled fuel is also extremely harmful to marine life.
The following is a step-by-step guide that you should follow when refueling a boat:
Before Fueling
- Moor the boat securely;
 - Shut down all engines;
 - Ensure that all passengers are off the vessel during fueling;
 - Extinguish all open flames;
 - Do not smoke in the fueling area;
 - Switch off all electrical equipment;
 - Close all doors, windows, and ports;
 - Place your on board fire extinguisher within easy reach; and
 - Move all portable tanks ashore (never fuel a portable tank in the boat).
 
 
During Fueling
- Hold the fuel nozzle firmly against the boat’s filler pipe to prevent a build-up of static electricity; and
 - Know how much fuel your tank can hold and do not overfill it — you have a duty to prevent fuel spills.
 
 
After Fueling
- Clean up any spillage if necessary;
 - Open doors, hatches and ports;
 - Place your portable tanks back in the boat. All portable fuel tanks should be kept away from sparks and heat and stowed in a well-ventilated location;
 - Operate your vessel’s engine compartment blower for at least four (4) minutes immediately before starting up the engine (for inboard gasoline engine only);
 - Check for vapours from the engine compartment before you start up the engine; and
 - Sniff for vapour odours in bilges and cabins.
 
REMEMBER: You should always run the blower for at least 4 minutes before starting an inboard engine.