EPA and NHTSA Announce Decision to Reconsider GHG Standards for Light Duty Vehicles

The Environmental Protection Agency (EPA) and National Highway Traffic Safety Administration (NHTSA) announced their intention to reconsider the greenhouse gas (GHG) emission standards for light duty vehicles (see: Notice of Intention to Reconsider the Final Determination of the Mid-Term Evaluation of Greenhouse Gas Emissions Standards for Model Year 2022-2025 Light Duty Vehicles).

The emission standards were originally issued in 2012 and covered light duty vehicles MY 2017-2025. EPA already conducted a midterm evaluation of the standards for MY 2022-2025, consistent with a directive in the 2012 rule, and concluded that no change was warranted for these later model years (see: Final Determination, Jan. 17, 2017). EPA and NHTSA now intend to reconsider the matter and issue a new determination on the appropriateness of the MY 2022-2025 by April 1, 2018.

EPA and NHTSA issued the notice shortly after the Alliance of Automobile Manufacturers filed a petition for review of the Jan. 17 determination in the D.C. Circuit Court of Appeals. Prior to filing that petition, the Alliance also sent a letter to EPA Administrator Scott Pruitt urging EPA to reconsider the emission standards.

Read more about the motor vehicle emission standards on our climate regulation database >>