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Daimler Truck North America LLC et al v. CA Air Resources Board et al

  1. November 03, 2025

    Calif. Can't Enforce 'Clean Trucks' Pact, Judge Says

    California cannot enforce a 2023 agreement that would have subjected heavy-duty truck manufacturers to stringent state emissions standards and stiff penalties for noncompliance, after a federal judge signaled that federal law likely preempts the Golden State's standards.

  2. October 27, 2025

    Feds Push To Keep Challenge To Calif. Truck Rules Alive

    The U.S. Environmental Protection Agency is urging a California federal court not to dismiss its intervenor claims alleging that the state violated the Clean Air Act through its adoption of new emissions standards for heavy duty trucks.

  3. October 14, 2025

    Calif. Seeks To Dismiss Feds' Suit Challenging Emission Regs

    California is asking a federal court to dismiss the U.S. Environmental Protection Agency's lawsuit challenging the state's emissions standards for heavy-duty trucks.

  4. September 18, 2025

    Calif. Slams Truck-Makers' Bid To Block Emissions Regs

    California has told a federal judge that truck manufacturers seeking to renege on their commitments to follow stringent state emissions standards for heavy-duty trucks in the coming years aren't entitled to an injunction now, and the Trump administration cannot bulldoze California into falling in line.

  5. August 28, 2025

    EPA Backs Truck-Makers' Bid To Block Calif. Emissions Regs

    The U.S. Environmental Protection Agency on Wednesday joined truck-makers in asking a California federal court to immediately block implementation of the state's emissions standards for heavy-duty trucks.

  6. August 15, 2025

    DOJ Ramps Up Assault On Calif. Truck Emissions Standards

    The Trump administration increased its assault on California's stringent emissions standards for heavy-duty trucks, saying Friday that it has intervened in lawsuits to strike down the Golden State's attempts to still enforce its standards in defiance of federal law.

  7. August 12, 2025

    Daimler, Volvo Sue Calif. To Block Emission Regulations

    Daimler, Volvo and other heavy-duty truck manufacturers sued California on Monday aiming to block the state from forcing them to comply with emission regulations, following moves by the Trump administration and Congress to revoke the state's authority to impose them.