The U.S. Environmental Protection Agency proposed to designate perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) on September 6, 2022, including their salts and structural isomers, as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). 87 Fed. Reg. 54415. According to EPA, “[s]uch a designation would ultimately facilitate cleanup of contaminated sites and reduce human exposure to these ‘forever’ chemicals.” Comments are due back to the EPA before November 7, 2022. The following is a link to the EPA website regarding these emerging contaminants: