EPA announced a proposed Safe Drinking Water Act rulemaking to rescind regulatory determinations and associated regulatory provisions from the 2024 PFAS National Primary Drinking Water Regulation (NPDWR) as they apply to PFHxS, PFNA, HFPO‑DA (GenX), and Hazard Index mixtures involving these PFAS plus PFBS. EPA indicated a 60-day written comment period will open following Federal Register publication (via Regulations.gov; Docket ID EPA-HQ-OW-2025-0654) and scheduled a virtual public hearing for July 7, 2026 with pre-registration due July 1, 2026. Compliance teams for water systems and affected stakeholders should track potential scope changes to federal PFAS drinking water standards/requirements and participate in the comment process as appropriate.
EPA issued a proposed rule that would retain the PFOA and PFOS drinking water maximum contaminant levels (MCLs) but create a federal exemption framework allowing eligible water systems to request two additional years to comply—extending the compliance date to April 26, 2031 (from April 26, 2029). The proposal provides for a written comment period (stated as 60 days after Federal Register publication) and schedules a virtual public hearing for July 7, 2026 (with pre-registration noted as July 1, 2026 on the EPA materials). Compliance teams at water utilities should evaluate eligibility/criteria implications and adjust PFAS NPDWR implementation schedules and capital planning assumptions pending finalization.
EPA issued a proposed rule (signed May 18, 2026 per EPA materials) to rescind the SDWA regulatory determinations and remove related NPDWR provisions for PFHxS, PFNA, HFPO‑DA (GenX chemicals), and Hazard Index mixtures involving PFHxS/PFNA/HFPO‑DA plus PFBS. Compliance teams at water utilities and impacted stakeholders should track the proposed rollback of these components of the PFAS drinking water framework, prepare comments, and reassess compliance planning contingent on final rule outcomes. EPA materials indicate a public comment process and a virtual public hearing with pre-registration deadline details.
EPA proposed a rule (signed May 18, 2026 per EPA materials) to keep the PFOA and PFOS MCLs while creating a federal exemption mechanism that would allow eligible water systems additional time to comply—extending the compliance deadline from April 26, 2029 to April 26, 2031. Compliance teams should evaluate eligibility criteria described by EPA, prepare for the public comment/hearing process, and reassess implementation project timelines and interim mitigation expectations during any exemption period.
EPA released a proposed rule to rescind the Safe Drinking Water Act regulatory determinations and remove associated National Primary Drinking Water Regulation (NPDWR) provisions for PFHxS, PFNA, HFPO‑DA (GenX), and the Hazard Index mixture (PFHxS + PFNA + HFPO‑DA + PFBS). If finalized, this would eliminate the monitoring/compliance obligations tied specifically to these contaminants under the 2024 PFAS drinking water rule, while (per EPA) not affecting PFOA/PFOS provisions. EPA indicates a 60‑day public comment period will run after Federal Register publication and the agency has scheduled a virtual public hearing for July 7, 2026 (registration details on EPA’s page).
EPA issued a proposed rule under the Safe Drinking Water Act to rescind prior regulatory determinations and remove associated NPDWR provisions (including MCLs/MCLGs and related monitoring/treatment/reporting requirements) for PFHxS, PFNA, HFPO‑DA (GenX chemicals), and Hazard Index mixtures of these PFAS plus PFBS. EPA also announced a virtual public hearing scheduled for July 7, 2026 with a pre-registration deadline of July 1, 2026. Compliance teams supporting public water systems and product/utility stakeholders should monitor the docket and proposal closely because it would remove federal drinking-water requirements for these PFAS if finalized and could alter monitoring, treatment, and public notification planning.
EPA announced a proposed rule to rescind regulatory determinations and remove related NPDWR provisions (including MCLGs/MCLs and associated requirements) for PFHxS, PFNA, HFPO‑DA (GenX), and the Hazard Index mixture approach (PFHxS/PFNA/HFPO‑DA plus PFBS). The proposal is open for public comment (60-day period following Federal Register publication) and includes a virtual public hearing scheduled for July 7, 2026 (registration deadline July 1, 2026). Compliance teams at public water systems and supporting vendors should track whether drinking-water obligations for these PFAS components are removed or modified, and consider participating in the comment/hearing process.
EPA announced a proposed rule that would create a federal exemption framework allowing eligible public water systems to request an optional two-year extension to comply with the PFOA and PFOS Maximum Contaminant Levels (MCLs), shifting the compliance date from April 26, 2029 to April 26, 2031. EPA indicates the proposal would not change the numeric MCL values. The proposal includes a 60-day public comment period following Federal Register publication and a virtual public hearing on July 7, 2026. Water utilities and compliance teams should assess eligibility and potential planning impacts, and consider submitting comments.
EPA issued a proposed rule under the Safe Drinking Water Act to rescind the 2024 PFAS NPDWR regulatory determinations and remove associated provisions (including MCLGs/MCLs and related monitoring/treatment requirements) for PFHxS, PFNA, HFPO‑DA (GenX), and Hazard Index mixtures (PFHxS + PFNA + HFPO‑DA + PFBS). EPA scheduled a virtual public hearing for July 7, 2026 with pre‑registration deadline July 1, 2026, and indicated a 60‑day comment period following Federal Register publication. Drinking water compliance programs should track whether these four PFAS components remain regulated under the NPDWR and adjust monitoring, treatment planning, and compliance budgeting accordingly.
EPA issued a proposed rule to create a federal exemption framework under the PFAS NPDWR that would allow eligible public water systems (upon request/approval) to extend the compliance deadline for PFOA and PFOS maximum contaminant levels (MCLs) from April 26, 2029 to April 26, 2031. Drinking-water compliance planners should assess how a potential exemption/extension pathway could affect capital planning, treatment procurement timelines, and internal compliance schedules, and consider submitting comments during the rulemaking process.
EPA issued a proposed rule to rescind Safe Drinking Water Act regulatory determinations and remove associated provisions in the 2024 PFAS NPDWR that are exclusive to PFHxS, PFNA, HFPO‑DA (GenX chemicals), and the Hazard Index mixture approach (mixtures including these PFAS plus PFBS). If finalized, this would change the scope of federally regulated PFAS drinking-water requirements by removing/altering monitoring/treatment/other NPDWR obligations tied to these specific PFAS/HI components (while leaving PFOA/PFOS requirements outside the scope of this proposal). EPA opened a written public comment process (60-day comment period after Federal Register publication) and scheduled a virtual public hearing for July 7, 2026 (speaker pre-registration deadline July 1, 2026; docket EPA-HQ-OW-2025-0654).
EPA issued a proposed rule to rescind the Safe Drinking Water Act (SDWA) regulatory determinations and remove related provisions in the 2024 PFAS NPDWR for PFHxS, PFNA, HFPO‑DA (GenX chemicals), and Hazard Index mixture-related provisions (mixtures including PFBS alongside PFHxS/PFNA/HFPO‑DA). Compliance teams for drinking-water utilities, primacy agencies, and downstream stakeholders should track the proposal, assess potential changes to monitoring/compliance programs for the affected PFAS/Hazard Index components, and consider submitting comments during the public comment period once published in the Federal Register.
EPA issued a proposed rule to retain the PFOA and PFOS maximum contaminant levels (MCLs) while creating a federal exemption framework under SDWA that would allow eligible public water systems additional time to comply—extending the compliance deadline from April 26, 2029 to April 26, 2031 for systems that request the exemption. Compliance teams at public water systems and primacy agencies should evaluate eligibility criteria and documentation needs, update project timelines and capital planning assumptions, and consider participating in the public comment process.
EPA announced a proposed rule to rescind the SDWA regulatory determinations and remove related drinking-water regulatory provisions for PFHxS, PFNA, HFPO‑DA (GenX chemicals), and the Hazard Index mixture approach (PFHxS, PFNA, HFPO‑DA, and PFBS). The proposal is positioned as a revision to the federal PFAS drinking-water regulatory framework adopted in 2024, potentially reducing the set of PFAS subject to federal MCL/MCLG and associated monitoring/treatment obligations (while leaving the PFOA/PFOS portions unaffected per EPA’s proposal description). EPA indicates a 60-day public comment period will run after Federal Register publication and notes a virtual public hearing scheduled for July 7, 2026 (with pre-registration deadline July 1, 2026).
EPA issued a proposed rule to rescind the SDWA regulatory determinations and remove associated 2024 PFAS NPDWR provisions covering PFHxS, PFNA, HFPO‑DA (GenX), and Hazard Index mixtures that include PFBS. The proposal initiates a public comment process (60 days after Federal Register publication per EPA materials) and includes a scheduled virtual public hearing on July 7, 2026 with preregistration by July 1, 2026. Compliance teams at public water systems and supporting consultants should track this rulemaking closely because, if finalized, it would roll back federal drinking-water standard provisions for these PFAS/mixture components, changing monitoring/treatment/planning assumptions under the 2024 NPDWR framework.
EPA proposed a rule that would create a federal exemption framework allowing eligible public water systems additional time to comply with the PFOA and PFOS maximum contaminant levels (MCLs), extending the compliance deadline to April 26, 2031 for approved systems. This is a significant timeline/implementation change for utilities planning treatment upgrades and capital projects. The proposal is accompanied by EPA supporting materials (pre-publication FR notice and FAQs) and uses a formal rulemaking docket process.
EPA issued a proposed rule to rescind SDWA regulatory determinations and remove associated PFAS NPDWR provisions for PFHxS, PFNA, HFPO‑DA (GenX chemicals), and the Hazard Index mixture (PFHxS+PFNA+HFPO‑DA+PFBS). If finalized, this would remove related drinking-water requirements (e.g., monitoring/compliance obligations) for those constituents under the 2024 PFAS NPDWR while leaving PFOA/PFOS elements unaffected per the proposal description. Compliance teams at public water systems and supporting laboratories should track the proposal and participate in the comment/hearing process because finalization could materially change which PFAS parameters are regulated under the federal NPDWR.
EPA issued a proposed rule to create a federal exemption framework that would allow qualifying public water systems to request additional time to comply with PFOA and PFOS maximum contaminant level (MCL) requirements, extending the compliance deadline from April 26, 2029 to April 26, 2031 for systems that submit a request. Compliance teams supporting water utilities should monitor the proposal because it changes expected implementation timelines and may create new administrative steps/criteria for seeking extensions. EPA indicated a 60-day written comment period after Federal Register publication and scheduled a virtual public hearing for July 7, 2026 (speaker pre-registration deadline July 1, 2026; docket EPA-HQ-OW-2025-1742).
EPA issued a proposed rule to create a federal exemption framework under the 2024 PFAS National Primary Drinking Water Regulation (NPDWR) allowing eligible public water systems to request an extension of the PFOA and PFOS MCL compliance date from April 26, 2029 to April 26, 2031, without changing the MCL values (4.0 ppt each for PFOA and PFOS). EPA also scheduled a virtual public hearing for July 7, 2026 with pre‑registration deadline July 1, 2026, and indicated a 60‑day comment period after Federal Register publication. Drinking water systems and compliance teams should assess eligibility criteria, plan for exemption requests (if finalized), and understand interim control-measure expectations described by EPA during the exemption period.
EPA issued a proposed rule under SDWA to rescind the 2024 PFAS NPDWR regulatory determinations and remove related regulatory provisions that are specific to PFHxS, PFNA, HFPO‑DA (GenX), and the Hazard Index mixture requirement (PFHxS + PFNA + HFPO‑DA + PFBS). The proposal includes a written comment period (stated as 60 days after Federal Register publication) and schedules a virtual public hearing for July 7, 2026 (EPA page also notes pre-registration by July 1, 2026). Compliance teams at water utilities and affected stakeholders should track this rulemaking because it could remove federal monitoring/compliance obligations tied to these PFAS/Hazard Index elements if finalized, changing sampling plans, treatment planning, and reporting expectations.