The Legal and Practical Challenges of California's Advanced Clean Fleets Regulation
On June 27, 2025, the California Office of Administrative Law (OAL) approved the amended Low Carbon Fuel Standard (LCFS) Regulation, submitted by the California Air Resources Board (CARB) to the OAL on May 16, 2025....more
Supremacy Clause and Dormant Commerce Clause claims against SB 253 and SB 261 were dismissed, while claims under the First Amendment proceed to discovery....more
Motor carriers and equipment manufacturers are closely watching federal and California Air Resources Board (CARB) developments in the future of vehicle emissions. The headline has long been that a transition from internal...more
Sen. Joe Manchin’s (D-WV) permitting reform hit the end of the road, failing with a vote of 47-47—however, Senate Democrats and Republicans signaled interest in addressing permitting approval in the new Congress....more
[co-author: Kerry Mackenzie and Leila Fleming] The Federal Acquisition Regulatory Council (FAR Council) released a proposed rule that would establish greenhouse gas emissions reporting requirements that would impact...more
CARB doubles down on LCFS Program and liquid transportation fuels. On May 10, 2022, the California Air Resources Board (CARB) released its Draft 2022 Scoping Plan Update (Draft Scoping Plan) for public review and...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
Environmental and Policy Focus - Gov. Brown and Democratic legislators drop plan for 50 percent cut in petroleum use in state: New York Times - Sep 9 - Gov. Jerry Brown and Senate Democrats abandoned a proposal for a 50...more