On April 28, 2014, the U.S. Environmental Protection Agency (EPA) published a final rule establishing more stringent vehicle emission standards and reducing the sulfur content of gasoline from 30 parts per million (ppm) to 10 ppm.
Referred to as EPA’s Tier III Motor Vehicle Emission and Fuel Standards (Tier III Standards), the final rule is closely coordinated with California’s Low Emission Vehicle program to ensure automakers will be able to sell the same vehicles in all 50 states. The final rule is effective June 27, 2014, and requires automakers to comply with the new standards beginning with the 2017 model year. Refiners must comply with the gasoline sulfur content standard by January 1, 2017. Further details regarding EPA’s Tier III Standards are available here.
For additional information, contact Andrew Holway.