Frequent Questions

In the past, EPA has, with the assistance of industry trade associations, produced fuels brochures for use at retail outlets explaining new fuel programs and addressing performance and air quality issues. Is EPA planning a similar effort with respect to t

A: In November 2005, the Clean Diesel Fuel Alliance was formed. Many public and private organizations are collaborating through the Clean Diesel Fuel Alliance to facilitate the introduction of ULSD. The U.S. Department of Energy (DOE), EPA, engine, vehicle and component manufacturers, all sectors of the petroleum industry, and fuel consumers, such as truckers, are providing comprehensive information and technical coordination. The CDFA has developed brochures, handouts, and an FAQ on ULSD. Please visit the CDFA website for more information at

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