ACI Pushes Senate to Address EPA Bottlenecks in New Chemical Reviews

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In an October 23, 2025, letter to leaders of the Senate Environment and Public Works Committee and its Subcommittee on Chemical Safety, the American Cleaning Institute (ACI) called for “targeted changes” to the Toxic Substances Control Act (TSCA) to accelerate new chemical reviews under the statute.

“ACI members are experiencing considerable challenges with [EPA’s] ability to meet its statutory deadlines under [TSCA], namely, to review and make final determinations on new chemicals within 90 days,” hindering innovation and the development of more eco-friendly products, the letter reads.

ACI also asked the committee to consider the “adverse impact” of significant new use rules (SNURs), which it claims are being applied to restrict “most” new chemicals.

“EPA has taken this route as TSCA requires EPA to consider ‘reasonably foreseen’ uses in new chemical reviews,” ACI wrote.  “The lack of a clear definition in the TSCA for the term ‘reasonably foreseen’ has led EPA staff to take an overly conservative approach that focuses heavily on theoretical hazards instead of utilizing a risk-based approach that prioritizes the specific conditions of use provided by manufacturers about the intended use of new chemistries.”

Meanwhile, ACI’s general counsel, Douglas Troutman, has been nominated by President Trump to lead EPA’s Office of Chemical Safety and Pollution Prevention. The Senate Environment and Public Works Committee advanced his nomination to the full Senate on October 29, 2025, in a party-line vote.

PFAS Reporting Rule Update: OMB Clears Path for EPA to Ease Requirements

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EPA is a step closer to easing PFAS reporting requirements for manufacturers and importers after the Office of Management and Budget (OMB) completed its review of a proposed rule on October 24, 2025, that is likely to introduce exemptions.

Background: The Current PFAS Reporting Rule

The Toxic Substances Control Act (TSCA) section 8(a)(7) PFAS reporting rule, finalized in 2023, requires entities that manufactured or imported PFAS in any year from 2011–2022 to report extensive data to EPA.  Unlike other TSCA reporting obligations, the rule does not exempt articles, de minimis quantities, byproducts, or impurities—drawing criticism from industry groups, who argue that its broad scope is both unnecessary and overly burdensome.

As discussed in a previous post, the rule’s original 2024 reporting deadline has already been delayed twice to 2026 because of technical difficulties.  However, in the most recent postponement, EPA signaled that it was considering reopening elements of the rule to align with the Trump administration’s deregulatory agenda.  On August 29, 2025, it submitted the proposal to OMB for regulatory review.

What’s Next

According to the Spring 2025 Unified Agenda, the rulemaking will incorporate “certain exemptions and other modifications to the scope of the reporting rule.”  The proposed rule is expected in December 2025, and EPA plans to finalize the rulemaking in June 2026.

More on the PFAS reporting rule’s requirements can be found in a previous post.

Proposed 2026 MSGP: Is Your Facility Prepared for PFAS Stormwater Monitoring Requirements?

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EPA’s proposed 2026 Multi-Sector General Permit (MSGP) for stormwater discharges associated with industrial activity would require quarterly monitoring for PFAS—a significant expansion of federal stormwater compliance obligations that facilities should begin preparing for now.

The MSGP implements Clean Water Act (CWA) National Pollutant Discharge Elimination System (NPDES) requirements across 29 industrial sectors.  EPA released the proposed permit in December 2024.  Once finalized, it will replace the current 2021 MSGP, which expires at the end of February 2026.

The MSGP applies only to areas where EPA is the NPDES permitting authority, including Massachusetts, New Hampshire, New Mexico, the District of Columbia, most US territories, much of Indian country, and certain federal facilities.  In a webinar, EPA estimated that 2,000 facilities will be directly affected.  However, because many states model their stormwater NPDES permits after EPA, the MSGP is likely to influence stormwater requirements nationwide.

PFAS Monitoring Requirements

Under the proposed 2026 MSGP, operators in 23 industrial sectors would be required to conduct quarterly indicator monitoring for 40 PFAS compounds for the duration of the permit.  The list includes PFOA, PFOS, PFHxS, PFNA, PFBS, and HFPO-DA (commonly known as “GenX”)—the six PFAS subject to EPA’s April 2024 national drinking water standards.

Testing must be performed using EPA Method 1633, which uses liquid chromatography and mass spectrometry to identify and quantify individual PFAS analytes.  Importantly, the proposed PFAS monitoring is “report-only” and does not include benchmark thresholds or require follow-up actions at this stage.

An EPA fact sheet states that the agency will use the data “to conduct an initial quantitative assessment of the levels of PFAS in industrial stormwater, further identify industrial activities with the potential to discharge PFAS in stormwater, and inform future consideration of potential PFAS benchmark monitoring for sectors with the potential to discharge PFAS.”

Other proposed monitoring updates include new or revised benchmark monitoring parameters for pH, total suspended solids (TSS), chemical oxygen demand (COD), ammonia, nitrate, nitrite, and selected metals in specific industrial sectors.  EPA is also proposing a modified benchmark monitoring schedule, with quarterly monitoring required for the first three years of permit coverage or until twelve quarters of monitoring data are collected.

Timeline and Related Actions

EPA intends to issue the final 2026 MSGP before the 2021 MSGP expires on February 28, 2026.  Once the final permit is published, operators will need to submit new Notices of Intent (NOIs) for coverage under the new permit.

According to the Spring 2025 Unified Agenda, EPA is also advancing several related PFAS initiatives under the CWA and the Safe Drinking Water Act (SDWA):

  • PFAS Monitoring in NPDES Applications: EPA plans to propose a rule in November 2025 to update several NPDES application forms to include PFAS monitoring and reporting requirements.
  • Effluent Guidelines for PFAS Manufacturers: EPA expects to propose revisions to the Organic Chemicals, Plastics, and Synthetic Fibers Effluent Limitations Guidelines and Standards in January 2026, addressing PFAS discharges from facilities manufacturing PFAS.
  • Drinking Water Standards: EPA is also expected to delay compliance deadlines for its national drinking water standards for PFOA and PFOS, and to rescind requirements for the other four PFAS included in the 2024 rule.

The comment period on the proposed 2026 MGSP closed on May 19, 2025.  More on the proposal can be found on EPA’s website.

EPA Eliminates Backlog of TSCA Substantial Risk Notifications

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EPA has cleared the backlog of section 8(e) submissions under the Toxic Substances Control Act (TSCA) thanks to process improvements, the agency announced on October 10, 2025.

TSCA section 8(e) requires that persons notify EPA when they obtain information that “reasonably supports the conclusion” that a chemical they manufacture, process, or distribute “presents a substantial risk of injury to health or the environment.”

According to the announcement, EPA assembled a team to address the backlog, which reviewed more than 3,000 submissions.  Approximately 920 of those submissions were flagged as “high interest and distributed across the agency.”

To prevent future backlogs, the announcement notes that EPA has established a workgroup to develop process improvements, enhanced its categorization system for incoming submissions, and implemented an automated notification system that alerts staff to relevant submissions.

More on TSCA section 8(e) submissions can be found on EPA’s website.

EPA Adds PFAS to TRI List for 2026 Reporting

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On October 7, 2025, EPA announced the addition of a new PFAS to the Toxics Release Inventory (TRI): PFHxS-Na (CASRN 82382-12-5).  PFHxS-Na is a salt associated with the PFAS PFHxS (CASRN 335-46-4).

The addition takes effect January 1, 2026.  EPA will likely publish the formal amendment to the list of TRI-reportable chemicals in the Federal Register shortly.

Why Was This PFAS Added?

PFHxS-Na was automatically added to the TRI list after EPA finalized a toxicity value for PFHxS and its salts in a 2025 Integrated Risk Information System (IRIS) report.  Under the FY 2020 National Defense Authorization Act (NDAA), PFAS must be added to the TRI list when certain criteria—such as a finalized toxicity value—are met.

According to the announcement, the other PFAS identified in that IRIS assessment are already on the TRI list.

Implications for Reporting Entities

Supplier notifications for PFHxS-Na will be first required as of January 1, 2026, and reporting companies will be required to include PFHxS-Na in their Reporting Year 2026 reports, according to an EPA webpage.

With this update, EPA says that a total of 206 PFAS are now subject to TRI reporting.  The agency previously added nine PFAS to the TRI list in January 2025 for Reporting Year 2025 reports, which are due July 1, 2026.

In addition, EPA has proposed a rule to add 16 individual PFAS and 15 PFAS categories to the TRI list, while also formalizing the criteria for automatic PFAS additions.  The Trump administration’s Spring 2025 Unified Agenda indicates that EPA will finalize the rule in February 2026.

More on that rulemaking and EPA’s other TRI PFAS actions can be found in our TRI archive.

EPA Not Required to Regulate PFAS in Sewage Sludge, Court Rules

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EPA is not required to identify and regulate PFAS in sewage sludge under the Clean Water Act (CWA), a federal judge ruled on September 29, 2025, in Farmer v. EPA, No. 24-cv-1654.

The CWA defines sewage sludge as “solid, semi-solid, or liquid residue generated during the treatment of domestic sewage in a treatment works.”  Every two years, the law mandates that EPA review its sewage sludge regulations and release a report “for the purpose of identifying additional toxic pollutants [in sewage sludge] and promulgating regulations for such pollutants.”

The case was brought by a group of farmers, a nonprofit that promotes organic agriculture, and an organization representing Potomac River watershed residents.  The plaintiffs argued that the widespread use of sewage sludge as fertilizer introduces PFAS into the food chain and contaminates water and property.  “EPA’s failure to identify and regulate PFAS in sewage sludge exposes Plaintiffs to continuing harm from future applications of sewage sludge on nearby properties,” their June 2024 complaint states.

They sought a court order requiring EPA to identify 18 specific PFAS in its next biennial report and to regulate 11 PFAS that the agency had already identified in previous reports—including PFOA and PFOS.

In its opinion, the D.C. District court concluded that the plaintiffs’ request exceeds the CWA’s requirements because the statute does not impose date-certain deadlines on the agency.  “Although the plain language of the CWA imposes a non-discretionary duty on EPA to review its regulations on a biennial basis, it does not mandate that EPA also identify and regulate sewage-sludge pollutants within the same time frame,” the opinion states.

The court further held that neither the biennial report nor EPA’s failure to list pollutants in that report constitutes a final agency action subject to Administrative Procedure Act (APA) review.  However, the court noted that the plaintiffs could challenge EPA’s inaction through a CWA petition, the denial of which “could constitute a final agency action” under the APA.

Company Sues EPA to Block Disclosure of Chemical Identities Under TSCA

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A silicates manufacturer is suing EPA to prevent the disclosure of its confidential business information (CBI) under the Toxic Substances Control Act (TSCA), in what at least one source claims may be a case of first impression under the law.

At issue are the chemical identities of two substances that Burgess Pigment Co. initially failed to substantiate as CBI following the 2016 Lautenberg Amendments to TSCA, which introduced new requirements for companies that seek trade secret protection in their submissions to EPA.

Burgess claims it submitted adequate substantiation once it discovered its oversight, maintained its CBI claim in subsequent filings, and has stayed in “constant contact” with EPA.  According to the complaint, if EPA discloses the chemical identities anyway, it would violate the Administrative Procedure Act (APA).

“EPA’s unreasonable adherence to form over function caused it to fail to adhere to its regulations requiring nondisclosure of properly substantiated CBI and is otherwise arbitrary, capricious, and contrary to law,” the complaint states.

According to the complaint, Burgess was one of many companies that failed to respond to the 2017 rule implementing the new CBI requirements.  In 2021, EPA released a rule to reopen the reporting period, but it was never published in the Federal Register.

The case is Burgess Pigment Co. v. U.S. Environmental Protection Agency, No. 5:25-cv-00309 (M.D. Ga.), filed 7/18/25.

Trump Administration Proposes Overhaul of Biden-Era TSCA Risk Evaluation Framework

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On September 23, 2025, EPA published a proposed rule that would roll back key provisions of the agency’s May 2024 risk evaluation framework rule, which sets out the procedures EPA uses to assess the risks of existing chemicals under the Toxic Substances Control Act (TSCA).

According to EPA, the proposal is intended to “effectuate the best reading of the statute and ensure that the procedural framework rule does not impede the timely completion of risk evaluations or impair the effective and efficient protection of health and the environment.”

The rollback is a priority for the Trump administration, which first announced its intent to reconsider the rulemaking in March.  The 2024 rule—itself a revision of a rule issued during the first Trump administration—has been criticized by industry groups such as the American Chemistry Council and targeted for revision by the Heritage Foundation’s “Project 2025” initiative.

What Changes is EPA Proposing?

If finalized, the rule would:

  • Grant EPA discretion to narrow the scope of risk evaluations by excluding conditions of use and exposure pathways from its assessments.
  • Require that separate risk determinations be made for each of a chemical’s conditions of use, instead of a single risk determination for the chemical as a whole.
  • Remove language prohibiting EPA from assuming worker protections through PPE usage.
  • Eliminate “overburdened communities” from the list of “potentially exposed or susceptible subpopulations” that must be considered in evaluations.
  • Provide EPA with greater flexibility to revise or supplement scope or risk evaluation documents without restarting the prioritization process.
  • Scale back information collection requirements for manufacturers requesting a risk evaluation.
Stakeholder Responses

The proposal has drawn criticism from environmental groups, who warn that the changes—particularly EPA’s ability to exclude conditions of use and exposure pathways—will jeopardize public health.

“Rather than looking at the full picture of a chemical’s toxic risk, EPA wants to downplay the links these chemicals have to cancer and chronic disease and give the chemical industry a handout at the expense of our health and safety,” an Environmental Defense Fund official said in a statement.

“The chemicals in the pipeline for review under TSCA have been prioritized specifically because of the risks they pose to our health, and rewriting this process to lowball risks will only rig the rules to benefit the chemical industry,” she continued.

The American Chemistry Council, on the other hand, applauded the move.  “This proposed approach demonstrates EPA’s commitment to refining its processes in a way that is both protective and practical,” an official said in a press release.  “The proposal reflects meaningful progress toward a more science-driven regulatory framework for conducting TSCA risk evaluations.”

Comments on the proposed rule are due November 7, 2025.  More on the 2024 rule can be found here.

EPA Stands by CERCLA PFAS Designation Amid Legal Challenge

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EPA under the Trump administration will defend a rule issued by the Biden administration designating two PFAS as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), the agency told the D.C. Circuit Court of Appeals on September 17, 2025.

“EPA has completed its review and has decided to keep the Rule in place,” the agency wrote in a court filing.

The case, Chamber of Commerce of the USA v. EPA, No. 24-1193, consolidates challenges to the May 2024 rule.  It has been held in abeyance since February at EPA’s request while the Trump administration determined how to proceed.

EPA’s decision to defend the rule is somewhat unexpected.  Last month, the New York Times reported that internal EPA documents recommended its repeal, stating that its “cons outweigh pros.”

Key Impacts of the CERCLA Designation

The rule has significant consequences for EPA’s ability to respond to contamination and assign cleanup responsibility for PFOA and PFOS, the two PFAS covered by the designation.

“Designating PFOA and PFOS as CERCLA hazardous substances eliminates barriers to timely cleanup of contaminated sites, enables EPA to shift responsibility for cleaning up certain sites from the Fund to [potentially responsible parties (PRPs)], and allows EPA to compel PRPs to address additional contaminated sites,” the rule states.

Due to the designation, entities that release PFOA and PFOS above reportable quantities must notify authorities.  When releases occur, EPA (and other agencies) can more quickly respond, because they no longer need to first determine that the release “may present an imminent and substantial danger.”

Crucially, the designation also allows EPA to compel PRPs to take action in response to significant PFOS or PFOA contamination—often at their own expense.

The rule justifies listing PFOA and PFOS based on their health hazards, persistence and mobility in the environment, and bioaccumulation in humans and other organisms.  EPA also conducted a “totality of the circumstances” analysis, which weighed the pros and cons of their designation.

More on EPA’s PFAS and CERCLA actions can be found on our CERCLA archive.

EPA to Fast-Track Chemical Reviews for AI and Data Center Projects

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EPA will prioritize review of premanufacture notices (PMNs) for chemicals tied to artificial intelligence (AI) and data center projects, the agency announced on September 18, 2025.

“We inherited a massive backlog of new chemical reviews from the Biden Administration which is getting in the way of projects as it pertains to data center and artificial intelligence projects,” EPA Administrator Lee Zeldin said.  “The Trump EPA wants to get out of the way and help speed up progress on these critical developments, as opposed to gumming up the works.”

The policy implements President Trump’s Executive Order 14318, “Accelerating Federal Permitting of Data Center Infrastructure,” which directs the agency to expedite permitting for qualifying projects under a variety of environmental statutes, including the Toxic Substances Control Act (TSCA).

What Projects are Eligible?

Two types of projects can qualify for expedited review:

  1. Data center projects requiring more than 100 megawatts (MW) of new load dedicated to AI inference, training, simulation, or synthetic data generation.
  2. Covered component projects, which include the materials, products, and infrastructure needed to build or operate such facilities—such as energy infrastructure, power plants, semiconductors, networking equipment, and data storage systems or software.

To be eligible, a project must also meet at least one of the following criteria:

  • A commitment of $500 million or more in capital expenditures.
  • An incremental electric load addition of more than 100 MW.
  • Direct relevance to national security.
  • Official designation as a qualifying project by a federal department.
How to Request Priority Review

According to updated EPA guidance, the new priority review process will take effect on September 29, 2025. To request it, PMN submitters must:

  • Attach a cover letter to their PMN submission via EPA’s Central Data Exchange (CDX).
  • Identify the specific data center or covered-component project the chemical will support.
  • Show that the project meets at least one of the executive order’s qualifying criteria.
  • Provide supporting documentation, such as permitting records, project announcements, or letters of support, plus details on how the chemical will be used.

EPA has posted detailed instructions for companies seeking priority review on its PMN guidance webpage.