The U.S. Environmental Protection Agency (EPA) announced on October 7, 2025, the addition of a per- and polyfluoroalkyl substance (PFAS) to the list of chemicals covered by the Toxics Release Inventory (TRI). EPA added sodium perfluorohexanesulfonate (PFHxS-Na) to the TRI list pursuant to the Fiscal Year 2020 National Defense Authorization Act (NDAA). EPA states that the addition is due to EPA issuing a final toxicity value in 2025 entitled “IRIS Toxicological Review of Perfluorohexanesulfonic...
