In April 2023, the EPA issued an Advanced Notice of Proposed Rulemaking (ANPRM) requesting input on the designation of seven PFAS as “hazardous substances” under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). This NPRM followed a proposed rule released in August 2022, which would designate the two most ubiquitous PFAS—PFOA and PFOS—as hazardous substances.
On Friday, August 26, 2022, the U.S. Environmental Protection Agency (EPA) released a pre-publication notice of a long-awaited proposed rule to designate two of the most-studied per- and polyfluoroalkyl substances (PFAS)—perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS)—as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). In an accompanying statement, EPA indicated that the proposed rule will be published in the Federal Register within the next few weeks. That publication will commence a 60-day public comment period. EPA appears to be targeting final rule promulgation by Summer 2023.