The D.C. Circuit upheld EPA's 2022 decision to reinstate a prior waiver of federal preemption of two California regulations concerning automobile emissions under the CAA. States and fossil fuel groups challenged the regulations—a standard limiting greenhouse gas emissions and a requirement that a ...
Concerned by methane’s potent climate-altering emissions, a growing number of states and municipalities have embraced the phaseout of natural gas as a tool to mitigate climate change. But in April 2023, the California Restaurant Association successfully petitioned the U.S. Court of Appeals for the Ninth Circuit to overturn the city of Berkeley’s ban on natural gas infrastructure in new buildings. The three-judge panel found the ban preempted by the federal Energy Policy and Conservation Act, and in January 2024, the Ninth Circuit denied Berkeley’s petition for rehearing.