ULSD Past Announcements

  • "2007 Heavy-Duty Highway Rule" (PDF) (Clean Diesel Trucks, Buses, and Fuel: Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements Final Rule) - published January 18, 2001

  • Clean Air Nonroad Diesel - Tier 4 Final Rule (PDF) - published June 29, 2004

  • Control of Air Pollution From Motor Vehicles and Non-road Diesel Engines (PDF) - Alternative Low-Sulfur Diesel Fuel Transition Program for Alaska, published June 6, 2006

  • Standards of Performance for Stationary Compression Ignition Internal Combustion Engines (PDF) - published July 11, 2006

  • EPA's Clean Diesel web page: https://www.epa.gov/cleandiesel

  • EPA's fact sheet on Federal Ultra-Low Sulfur Diesel Fuel Requirements (PDF)