California's ability to set its own vehicle emission standards under its Clean Air Act waiver of federal preemption is in jeopardy given three joint congressional resolutions signed into law by President Trump on June 12,...more
Iowa AG Brenna Bird led a group of 26 Republican AGs in filing two amici curiae briefs urging the dismissal of pending challenges to Environmental Protection Agency waivers allowing California to enforce its own vehicle...more
Relief is not immediately in sight for companies subject to key California greenhouse gas emission laws. A federal court in California recently denied a motion for a preliminary injunction to pause compliance with SB-253,...more
A group of truck manufacturers filed a lawsuit on August 11 against California regulators contending that the state lacks the authority to enforce its heavy-duty vehicle emissions standards, which are stricter than federal...more
In California Natural Gas Vehicle Coalition v. State Air Resources Board, 105 Cal. App. 5th 304 (2024), the court upheld the Advanced Clean Trucks Regulation (“Regulation”), holding that the California Air Resources Board did...more