In Surprise, EPA Decides To Retain Landmark Biden-Era CERCLA PFAS Rule

September 17, 2025
In a surprise move, EPA has told a federal appellate court it is planning to retain the Biden-era rule designating two legacy PFAS as “hazardous substances” under the Superfund law, clearing the way for the agency to defend the measure in a pending industry suit despite recent reports that one top EPA official advocated for the agency to oppose the rule. “EPA has reviewed the underlying rule and has decided to keep the Rule in place,” the agency says in...


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