The Supreme Court tossed a lower court’s ruling that had upheld Biden-era regulations on gas furnaces and commercial water heaters, which opponents argued were overreaching and would ban various gas appliances from being sold.The high court announced its decision in an order list released Monday, sending the case back to the U.S. Court of Appeals for the D.C. Circuit after quickly vacating the appeals court’s November 2025 ruling. The ruling comes as the Trump administration has already repealed several of the Biden administration’s controversial appliance rules and regulations since returning to the White House last year.A three-judge panel on the D.C. Circuit ruled 2-1 that the regulations were lawful, finding that Congress gave the Department of Energy broad discretion to enact such rules under the Energy Policy and Conservation Act. The case was argued in November 2024, with the Biden administration defending the rules, but a ruling was not issued until November 2025. The Trump administration said it viewed the regulations as “factually and legally flawed.” The Supreme Court’s Monday order allows the Trump administration to argue its differing position to the lower appeals court.