Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News!. On December 16, 2024, the US Supreme Court denied a petition filed by a number of states dominated by conservative extremists that asked the court to review constitutional challenges to California’s authority to enforce its own emissions limits for new cars and light trucks. The Court’s order denying a petition submitted by Ohio and other states came after the court declined on December 13 to consider the merits of oil and gas interests’ separate challenges to the lawfulness of EPA’s decision granting California a waiver of Clean Air Act preemption for its clean vehicle standards. The only issue the Court said it will consider related to the challenges by the fossil fuel companies is a very narrow preliminary question about whether they have standing to bring their claims. The court granted review on that issue in its order last Friday.