Changes made to this website for Diesel Fuel Standards

This diesel fuel standards site contains the following content:

  • Basic information on diesel fuel in transportation
  • Applicable diesel fuel standards
  • Reference to diesel regulatory programs, including highway diesel program, nonroad diesel program, diesel boats and ships, and locomotives 
  • Information on state fuels
  • Alternative low-sulfur diesel fuel transition program for Alaska
  • Exemption of certain U.S. Territories, including Guam, Mariana Islands and American Samoa 

Diesel fuel compliance information such as registration, reporting, public data and the following compliance help documents can be located on Fuels Registration, Reporting and Compliance Help

  • EPA Guidance on ECA Marine Fuel (December 2014)
  • Yellow Marker 2012 Transition Guidance (June 2012)
  • 500 ppm Sulfur NRLM Credit Calculation Guidance (June 2009)
  • High Sulfur NRLM Credit Calculation Guidance (January 2007)
  • Guidance on Mobile Facilities (March 2006)
  • Small Entity Compliance Guide for Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engines and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements (September 2005)
  • Small Entity Compliance Guide for Control of Emissions from Nonroad Diesel Engines and Fuel (September 2005)
  • Summary and Analysis of the 2003-2006 Diesel fuel Pre-Compliance Reports (December 2010)

The following technical amendments can be located under the section, titled "Related Diesel Fuel Sulfur Links" on the Heavy Trucks, Buses, and Engines website.

  • Amendments to Light-Duty Tier 3 Vehicle and Fuel Standards and Other Nonroad and Fuel Provisions (February 2015)
  • Modifications to the Transmix Provisions under the Diesel Sulfur Program (December 2012)
  • Amendments to the Nonroad and Highway Diesel Regulations (July 2005)
  • Revisions to Motor Vehicle Diesel Fuel Sulfur Transition Provisions, and Technical Amendments to the Highway Diesel, Nonroad Diesel, and Tier 2 Gasoline Programs and  (November 2005 and May 2013)
  • Technical Amendments to the Highway and Nonroad Diesel Rules (May 2006)