The D.C. Circuit held that EPA must continue to enforce methane emissions regulations implemented by the previous administration. In 2016, an EPA regulation required oil and gas companies to find and fix leaking methane. The measure requires companies to upgrade equipment at the sites to better capt...

The Fourth Circuit held that it does not have jurisdiction to determine whether EPA violated the CAA when the agency failed to conduct continuing evaluations of potential loss or shifts of employment before implementing regulations. In 2014, several coal companies brought suit against EPA, alleging ...