May 232024

17 States File Complaint Challenging Constitutionality of California’s Advanced Clean Fleets Regulation

CAA, California, California Air Resources Board, CARB, Electric Vehicles, Heavy-Duty Vehicles, Zero Emissions Vehicles

Samuel B. Boxerman, Caleb J. Bowers, Aaron L. Flyer and Riley Desper

May 23, 2024

On May 13, 2024, 17 states filed a complaint in the U.S. District Court for the Eastern District of California challenging California’s Advanced Clean Fleets (ACF) regulation.

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Riley Desper

Washington, D.C.

rdesper@sidley.com

Apr 32024

The Newest Phase of EPA’s Greenhouse Gas Emissions Standards: Phase 3

Advanced Clean Truck, California Air Resources Board, Carbon Dioxide, Clean Air Act, Clean Trucks Plan, Electric Vehicles, Emissions, EPA, Greenhouse Gases, Heavy-Duty Vehicles, NHSTA, NOx, Omnibus Regulation, On-Road Vehicles, Particulate Matter, Phase 2 GHG Standards, Phase 3 GHG Standards, Tractor-Trailer Trucks, Zero Emissions Vehicles

Samuel B. Boxerman, Justin A. Savage, Aaron L. Flyer and Sophia E. Wallach

April 3, 2024

On March 29, 2024, the U.S. Environmental Protection Agency (EPA) announced its most recent national greenhouse gas (GHG) pollution standards for heavy-duty (HD) vehicles, including HD vocational vehicles and tractors. The rule establishes new CO₂ emission standards for model year (MY) 2032 and later HD vehicles, with more stringent CO₂ standards phasing in as early as MY 2027 for certain vehicle categories.

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