Ultra-Low Sulfur Diesel Distribution

Ultra-low sulfur diesel (ULSD) is being distributed via existing infrastructure and sold at retail fueling stations. All diesel fuel sold in California was required to be ULSD in 2006. By 2010, all diesel fuel sold in the United States must be ULSD. In the period until 2010, retail fueling stations are required to specify the type of fuel dispensed by each pump (see labels).

Graphic of required diesel labeling - Ultra-Low Sulfur Highway Diesel Fuel (15 ppm Sulfur Maximum). Required for use in all model year 2007 and later highway diesel vehicles and engines. Recommended for use in all diesel vehicles and engines.Graphic of required diesel labeling - Low Sulfur Highway Diesel Fuel (500 ppm Sulfur Maximum). Warning - Federal law prohibits use in model year 2007 and later highway vehicles and engines. Its use may damage these vehicles and engines.Graphic of required diesel labeling - Non-Highway Diesel Fuel (May Exceed 500 ppm Sulfur). Warning - Federal law prohibits use in highway vehicles or engines. Its use may damage these vehicles and engines.

Required diesel labeling (Source: Clean Diesel Fuel Alliance)