Federal Register: EPA Issues Notice of Proposed Rule, Request for Public Comment, Notice of Public Hearing on Rescission of Regulatory Determinations for PFHxS, PFNA, GenX, PFBS
May 20, 2026
May 20, 2026
WASHINGTON, May 20 (TNSFR) -- The Environmental Protection Agency (EPA) is proposing to rescind its regulatory determinations to regulate four per- and polyfluoroalkyl substances (PFAS)--perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), hexafluoropropylene oxide dimer acid and its ammonium salt (HFPO-DA), and mixtures of these three PFAS plus perfluorobutane sulfonic acid (PFBS)--under the Safe Drinking Water Act (SDWA). The EPA is also proposing to rescind all associated reg . . .