State of Ohio, et al v. EPA, et al

  1. February 14, 2023

    DC Circ. Should Nix Calif. Waiver Challenge, Groups Say

    California and a host of states, green groups, energy groups and major automakers are urging the D.C. Circuit to reject a petition by Ohio and other Republican-led states that challenges California's authority to create its own greenhouse gas emission standards for cars and mandate zero-emission vehicles.

  2. January 17, 2023

    EPA Defends Reviving Calif. Vehicle Emissions Standards

    Federal environmental regulators have urged the D.C. Circuit to reject a challenge to California's authority to create its own greenhouse gas standards and an electric vehicle mandate, saying Republican-led states have sued the agency using an "invented" constitutional argument with no basis in law or history.

  3. January 02, 2023

    Biggest Environmental Cases To Watch In 2023

    Some huge environmental cases are on the docket for courts across the country in 2023, including an expected Supreme Court ruling on the Clean Water Act's reach, lawsuits over the federal government's efforts to control vehicles' greenhouse gas emissions and fuel economy, a high court dispute over Superfund liability, and emerging chemicals litigation.

  4. November 02, 2022

    California Emissions Authority Can't Stand, DC Circ. Told

    The D.C. Circuit should repeal a U.S. Environmental Protection Agency waiver allowing California to set emission standards for vehicles and mandate zero-emission vehicles, fuel, trucking and business groups argued, saying the agency does not have authority to make such a broad decision.

  5. October 25, 2022

    Fuel Groups Say Calif. Can't Tackle Climate With Vehicle Regs

    California's additional Clean Air Act authority to tackle its unique pollution problems was never intended to give the Golden State the ability to regulate climate change and force nationwide vehicle electrification, gasoline and biofuel industry groups told the D.C. Circuit on Monday.

  6. October 20, 2022

    Red States Tell DC Circ. Calif.'s Clean Air Act Waiver Must Fall

    A group of right-leaning states on Thursday asked the D.C. Circuit to revoke California's right to set its own vehicle emission standards, arguing the U.S. Environmental Protection Agency violated the Constitution and federal law when it gave the state that power.

  7. July 06, 2022

    Energy Litigation To Watch In The Second Half Of 2022

    The U.S. Supreme Court fielding a fresh request to keep climate change torts against fossil fuel companies in federal courts, and circuit courts grappling with carbon calculation metrics and regulation of vehicle greenhouse gas emissions highlight the key role climate change will play in energy-related litigation worth watching in the second half of 2022.

  8. June 30, 2022

    DC Circ. Keeps GOP's Calif. Vehicle Authority Appeal Paused

    The D.C. Circuit extended a pause in an appeal argued by Republican-led states over whether California has the authority to craft its own vehicle greenhouse gas emissions standards, deciding Wednesday to wait until related litigation gets decided.

  9. June 14, 2022

    Clean Energy Cos. Back Calif.'s Power Over Vehicle Emissions

    Utilities and clean energy industry groups on Monday threw their support behind the U.S. Environmental Protection Agency in D.C. Circuit litigation challenging the agency's decision to support California's right under the Clean Air Act to create its own greenhouse gas emission standards, saying the Golden State's authority must be preserved.

  10. June 07, 2022

    Carmakers Tell DC Circ. They Back Calif. GHG Standards

    Ford, Volkswagen, BMW and several other automobile manufacturers asked the D.C. Circuit for permission to jump in on behalf of California in litigation challenging the Golden State's right under the Clean Air Act to create its own greenhouse gas emission standards, saying they support the state regulations.