On September 6, 2022, the United States Environmental Protection Agency (USEPA) published a proposed rule to designate Perfluorooctanoic Acid (PFOA) and Perfluorooctanesulfonic Acid (PFOS) as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), also known as the Superfund.

These two per- and polyfluoroalkyl substances (PFAS) have been linked to various adverse