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Protecting People and the Environment.

Costco Wholesale is committed to environmental protection and safety in all aspects of our fuel business. Costco's business philosophy emphasizes long-term trust relationships with our members and employees, all of whom live and work in the communities we serve.

Certified Costco Fuel Attendants

The best environmental and safety feature of Costco fuels stations is our trained fuel attendants. Attendants must pass a UK PIA certification test before they can work at a Costco fuel station. Our attendants work at the fuel islands so they can respond immediately to any safety or environmental issue.

Continuous Leak Monitoring

Costco fuel stations have corrosion-proof double-wall underground storage tanks and piping. Everything underground is continuously monitored for leaks via an electronic monitoring system. The entire station will automatically shut down if a leak is detected. These electronic alarm systems are monitored around the clock by our employees and an outside service.

Air Pollution Control

Costco fuel stations feature the latest technologies for making sure fuel vapour remains contained. Costco works cooperatively with various government bodies to stay at the forefront of air pollution control efforts.

Spill Cleanup Program

The best equipment in the world doesn't prevent the occasional surface spill. Spilled fuel is a safety hazard as well as an environmental concern, so we train our fuel station attendants on how to properly clean up a surface spill. Every Costco fuel station operates with a spill kit on the fuel islands.


Trained and certified Costco attendants stationed on the fuel islands make our fuel stations safe places to buy fuel. Our attendants help customers in a variety of ways, including aid to anyone requiring physical assistance in fueling their vehicle. They are charged with ensuring our members comply with all applicable laws and signage regarding safe refuelling, including prohibitions against smoking, leaving the engine running, and filling portable containers not certified for such use.