EPA expands TRI PFAS reporting: adds sodium perfluorohexanesulfonate (PFHxS‑Na) as a chemical of special concern

EPA issued a final action expanding PFAS reporting under EPCRA §313 / the Toxics Release Inventory (TRI) by adding sodium perfluorohexanesulfonate (PFHxS‑Na). EPA states PFHxS‑Na is treated as a “chemical of special concern” with a 100 lb reporting threshold and notes the TRI PFAS list increases to 206 substances. EPA also specifies timing for regulated facilities: tracking/reporting begins with Reporting Year 2026 (reporting period beginning 2026-01-01) and the first Form R submissions are due 2027-07-01. Compliance teams should update TRI chemical inventories, supplier communications, and facility tracking systems to include PFHxS‑Na and verify applicability of the lower special-concern threshold.