A federal appeals court ruled Tuesday that the Environmental Protection Agency must regulate perchlorate, reversing a Trump-era rollback on a drinking water contaminant linked to brain damage in infants.
A three-judge panel of the U.S. Court of Appeals for the District of Columbia ruled unanimously in an appeal brought by the Natural Resources Defense Council last year after the EPA, under the Biden administration, stood by the rollback. Two judges wrote that the EPA had no authority to withdraw from a 2011 determination that perchlorate should be regulated.
