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On April 19, 2024, EPA signed the highly anticipated final rule designating two types of PFAS as hazardous substances under section 102(a) of the Comprehensive Environmental Response, Compensation, and Liability Act (“CERCLA”).  At the same time, David M. Uhlmann, Assistant Administrator for Enforcement and Compliance Assurance of the EPA, released an enforcement policy memorandum that provides “direction to all EPA enforcement and compliance staff about how EPA will exercise its enforcement discretion under CERCLA in matters involving PFAS, just as EPA exercises enforcement discretion regarding other hazardous substances.”  This alert summarizes key points from the enforcement policy and flags various uncertainties that lie ahead. Continue Reading EPA’s Busy April for CERCLA and PFAS:New CERCLA Authority, an Enforcement Escape Hatch, and the Continued Search for Viable Cleanup Technologies