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

  1. March 11, 2026

    Calif. Wants Truck Cos., Feds' Clean Truck Pact Claims Nixed

    California officials again asked a federal judge to gut key claims from heavy-duty truck manufacturers and the federal government challenging the 2023 deal in which the manufacturers agreed to stringent state emissions standards and stiff penalties for noncompliance in the coming years.

  2. January 26, 2026

    Truck Makers Say Calif. Delaying 'Clean Trucks Pact' Fight

    Heavy-duty truck manufacturers on Monday accused California officials of trying to delay litigation over a 2023 agreement that would saddle manufacturers with stringent state emissions standards and stiff penalties for noncompliance in the coming years.

  3. January 22, 2026

    Transportation Cases To Watch In 2026

    Clashes over the scope of federal preemption in personal injury cases involving freight brokers and motor carriers, the Trump administration's gutting of Biden-era vehicle emissions standards and cuts to states' transportation and infrastructure funding are among the court battles that transportation attorneys are monitoring in 2026.

  4. January 02, 2026

    Energy And Environmental Cases To Watch In 2026

    This year promises to be a big one for energy and environmental cases, with courts slated to consider California's authority to regulate vehicle emissions, the federal government's authority to rescind grant funding and whether the president can fire certain agency officials. Here, Law360 takes a look at key energy and environmental cases to watch at the U.S. Supreme Court and elsewhere.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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.