In re NHTSA Corporate Average Fuel Economy Standards for Passenger Cars & Light Trucks for Model Years 2027 and Beyond and Fuel Efficiency Standards for Heavy-Duty Pickup Trucks & Vans for Model Years 2030 and Beyond

Challenges were filed in multiple federal circuit courts of appeal to the National Highway Traffic Safety Administration (NHTSA’s) fuel economy standards for passenger cars and light trucks for model years 2027 and beyond and fuel efficiency standards for heavy-duty pickup trucks and vans for model years 2030 and beyond. The petitions for review were filed by producers and sellers of liquid fuels used in motor vehicles (Fifth Circuit); American Petroleum Institute, other trade groups, and car dealership owners (Fifth Circuit); 26 states (Sixth Circuit); and an environmental group (D.C. Circuit).

On February 14, 2025, the Sixth Circuit granted the federal government respondents’ motion for abeyance.

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