The U.S. Environmental Protection Agency announced a rule on February 23 adding sodium perfluorohexanesulfonate (PFHxS-Na) to the Toxics Release Inventory (TRI). The TRI is a tool that tracks and shares information about chemical releases and pollution prevention activities by factories and other facilities.
Under this rule, businesses in covered industries must begin tracking and reporting any use or release of PFHxS-Na, a well-studied PFAS chemical. The first reporting period began January 1, 2026, and the first reports will be due to the EPA by July 1, 2027. Because PFHxS-Na is classified as a chemical of special concern it is subject to a lower reporting threshold, in this case 100 pounds.
PFHxS-Na is the latest PFAS chemical added to the TRI under a process established by Congress in the 2020 National Defense Authorization Act (NDAA), which directs the EPA to automatically include new PFAS chemicals in the inventory each year. With this action, the number of PFAS substances tracked by TRI rises to 206.
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NGWA has long been an industry leader in providing PFAS research, education, and resources to the public and scientific communities. Click here to learn more. The Association will host, PFAS in the Age of Uncertainty Conference, March 9-10 in San Antonio, Texas.