Unpacking California's 2024 Zero Emission Fleet Mandate
Propel: The road to zero emissions in Oxford, UK
President Trump took steps to dismantle California’s vehicle emissions standards on June 12, 2025, by signing three Congressional Review Act (“CRA”) resolutions revoking California’s waiver under the Clean Air Act. The waiver...more
California’s Air Resources Board (CARB) on Jan. 13 sent a letter to withdraw its request to the Environmental Protection Agency pursuant to Sections 209(b) of the Clean Air Act (CAA) for a federal waiver that would require...more
A group of 24 Republican AGs submitted comments urging the EPA to deny California’s request for a preemption waiver for its Advanced Clean Fleets Regulation, which requires certain vehicle fleets to incorporate zero-emitting...more
The U.S. Environmental Protection Agency ("EPA") finalized the strictest-ever emission standards for heavy-duty vehicles. On March 29, 2024, EPA announced new emission standards for heavy-duty vehicles for model years 2027...more
A historic joint agreement, called the Clean Truck Partnership, was announced on July 6, 2023, between the California Air Resources Board (CARB) and a number of heavy-duty engine and vehicle manufacturers. Under the...more
A federal court heard motions for summary judgment in challenge to first-in-nation rule requiring warehouses to adopt clean technologies. By Joshua Bledsoe, Nick Cox, and Jennifer Garlock On April 17, 2023, a US federal judge...more
The South Coast Air Quality Management District (“SCAQMD”) is pursuing a new rule to regulate distribution warehouses. The SCAQMD’s focus is not on emissions generated by the warehouses or their equipment. Rather, its focus...more
Multi-state coalition’s lawsuit challenges Trump EPA withdrawal of California Clean Air Act waiver. EPA formally announced its decision to withdraw California’s 2013 Clean Air Act waiver, which allowed the state to set its...more