The agency proposed eliminating drinking water limits for four per- and polyfluoroalkyl substances (PFAS) and delaying enforcement deadlines for two, The Washington Post said. EPA said the Biden administration had rushed those regulations and not followed procedures, leaving them vulnerable to court challenges.

“We are proposing to rescind and restart the regulation for four other PFAS,” EPA Administrator Lee Zeldin said Monday. “It’s not because they don’t matter. They might warrant strict standards, possibly even stricter than what was previously regulated.”