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United States Environmental Protection Agency
Tier 2 Vehicle & Gasoline Sulfur Program
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Cleaner Passenger Vehicles & Gasoline
Clean Cars + Clean Fuel = Cleaner Air

The Tier 2 Vehicle and Gasoline Sulfur Program is a landmark program that affects every new passenger vehicle and every gallon of gasoline sold in the U.S. By designing cleaner cars that run on cleaner fuels the result is cleaner air. The program is a series of "firsts." For the first time:

  • SUVs, pickups, vans, and even the largest personal passenger vehicles are subject to the same national emission standards as cars;
  • vehicles and the fuels they use are treated as a system, so the cleaner vehicles will have the low-sulfur gasoline they need to run their cleanest;
  • new emission standards apply to all light vehicles, regardless of whether they run on gasoline, diesel fuel, or alternative fuels.

The Tier 2 Vehicle and Gasoline Sulfur program is part of a series of major initiatives that will reduce emissions from passenger vehicles, highway trucks and buses, and nonroad diesel equipment. The result will be reduced emissions, cleaner air, and improved human health.

On EPA's Green Vehicle Guide Web site you can research which cars, SUVs and trucks meet the new standards.


For further information or assistance regarding this Web page, please contact the ASD Information Line at (734) 214-4636 or email: asdinfo@epa.gov .

 Key Topics:
Transportation and Air Quality

Overview: Pollutants and Programs

Consumer Information

On-road Vehicles and Engines

Nonroad Engines, Equipment, and Vehicles

Fuels and Fuel Additives

Voluntary Programs

Transportation and Air Quality Planning

Modeling, Testing, and Research

                                  

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