Which practice is most effective at preventing environmental hazards during refueling?

• A. Follow refueling procedures.
• B. Refuel with engine running.
• C. Use proper fuel type.
• D. Ignore fuel spills.

Answer: (A)

Preventing environmental hazards during refueling comes down to following established refueling procedures. Those procedures ensure you shut the engine off, eliminate ignition sources, properly connect and ground the fueling equipment, and have spill containment ready. The aim is to prevent spills from reaching soil or water, control vapors, and enable quick cleanup if something does spill, minimizing environmental damage. Other options don’t cover the full safety net: refueling with the engine running raises fire and emission risks; selecting the proper fuel type matters for equipment health but doesn’t by itself prevent spills or ensure proper response; ignoring spills guarantees contamination and hazards.