EPA announced it will keep the existing National Primary Drinking Water Regulation (NPDWR) maximum contaminant levels (MCLs) for PFOA and PFOS, but plans to pursue rulemaking to extend the compliance date (EPA references moving from 2029 to 2031). EPA also stated its intent to rescind/reconsider regulatory determinations for PFHxS, PFNA, HFPO‑DA (GenX), and the Hazard Index mixture approach. Compliance teams for public water systems and impacted suppliers should monitor the forthcoming proposal and final rule timing because it may extend implementation schedules for PFOA/PFOS while changing scope for other PFAS components.
EPA announced it will retain the National Primary Drinking Water Regulation maximum contaminant levels (MCLs) for PFOA and PFOS, but intends to extend the compliance timeline (EPA states it plans to propose extending the deadline to 2031, with a final rule targeted for Spring 2026). EPA also announced its intent to rescind and reconsider regulatory determinations/regulations for PFHxS, PFNA, HFPO-DA (GenX), and the Hazard Index mixture approach (PFHxS, PFNA, HFPO-DA, PFBS). Compliance teams for public water systems and supporting suppliers should monitor for proposed and final rulemaking that may alter implementation timelines and scope for PFAS drinking water compliance obligations.
Under TSCA Section 8(a)(7), the US Environmental Protection Agency (EPA) requires manufacturers (including importers) of per- and polyfluoroalkyl substances (PFAS) to submit one-time retrospective reports covering PFAS manufactured or imported since January 1, 2011. The rule aims to enhance federal oversight by collecting detailed information on PFAS production volumes, uses, exposure pathways, and potential environmental and human health impacts. Reporting opens April 13, 2026; submissions are due by October 13, 2026, with small manufacturers allowed until April 13, 2027
EPA (via EPCRA SERC/TERC Update) announced the automatic addition of nine PFAS to the Toxics Release Inventory (TRI) list effective January 3, 2025. This expands the PFAS subject to TRI reporting and impacts covered facilities’ chemical tracking and TRI Form R/Form A reporting for Reporting Year 2025 (with forms due July 1, 2026, as stated in the update). Compliance teams at TRI-covered facilities should update chemical inventories, supplier declarations, and reporting systems to ensure these PFAS are captured for applicable release and waste management reporting.
EPA’s Proposed 2026 NPDES Multi-Sector General Permit (MSGP) fact sheet includes a new provision for certain industrial sectors to conduct quarterly, report-only indicator analytical monitoring for PFAS. The fact sheet references monitoring for a suite of PFAS compounds aligned with EPA Method 1633, with analysis using EPA Method 1633. Facilities that rely on MSGP coverage should evaluate whether their sector would be subject to PFAS monitoring and prepare for potential sampling/lab capacity and internal reporting workflows if finalized.