Air Products and Chemicals, Inc. designed, engineered, permitted, constructed, and made operational a hydrogen refueling station at 21865 E. Copley Drive, Diamond Bar (Los Angeles County). The Diamond Bar SmartFuel® hydrogen station was approved for construction on February 14, 2014, and began public refueling in August of 2015. The station receives gaseous hydrogen delivered at elevated pressure from an Air Products and Chemicals, Inc. production facility in southern California. The station, comprised of compression, cooling, and a two-hose dispenser with a customer payment interface, is used to refill fuel cell electric vehicles.