On April 10, 2025, at the request of the Environmental Protection Agency (EPA), the U.S. Court of Appeals for the District of Columbia Circuit extended the stay by 30 days in American Water Works Association, et al. v. EPA, No. 24-1188 (D.C. Cir. 2024) to give new leadership time to evaluate the maximum contaminant levels (MCLs) established for six PFAS under the Safe Drinking Water Act. 89 Fed. Reg. at 32,532-33; 40 C.F.R. §§ 141.900-905. The court had previously granted EPA’s February 7 request for a 60-day stay to allow for initial review of the rule. The EPA has until May 12, 2025, to file future motions in the MCL challenge.
Articles Posted in Environmental Protection Agency (EPA)
Congressional Allocation Signifies EPA Intent to Maintain the One-Time PFAS Reporting Rule Under TSCA Section 8(a)(7)
Recently, Congress allocated approximately $17 million in EPA’s fiscal year 2025 budget to modernize outdated technical systems and accelerate chemical reviews which may help resolve ongoing concerns about the functionality and security of the agency’s Central Data Exchange (CDX), a key platform supporting the TSCA program (Sec. 1801(7) of H.R. 1968).
House Republicans Seek to Rescind Late-Term EPA Rule Curtailing PFAS Exemptions for New Chemicals
House Republicans have introduced a joint resolution under the Congressional Review Act (CRA) to nullify a rule issued by the Environmental Protection Agency (EPA) late in the prior administration. The rule narrowed the availability of expedited review pathways for certain new chemical substances—including per- and polyfluoroalkyl substances (PFAS)—under the Toxic Substances Control Act (TSCA). The resolution, H.J.Res.76, introduced by Reps. Clay Higgins (R-LA) and William Timmons (R-SC), seeks to nullify EPA’s December 2024 rulemaking, Updates to New Chemicals Regulations Under the Toxic Substances Control Act (89 Fed. Reg. 102773).
EPA Signals Potential PFAS Policy Pivot Under New Administrator
In March, EPA Administrator Lee Zeldin addressed top state environmental officials, highlighting the Agency’s priorities for the year ahead. Without committing the EPA to an official stance, Zeldin reaffirmed his commitment to “cooperative federalism” by engaging with states on environmental challenges ranging from per- and polyfluoroalkyl substances (PFAS) to permitting reform at the Environmental Council of States Spring Meeting. At the meeting, Zeldin told state officials the EPA is in the process of figuring out how to best address concerns coming from water utilities regarding the timing and funding of the substantial infrastructure investment required to meet the Biden-era PFAS standards.
Court Approves 60-Day Stays in Legal Battles over Biden-Era PFAS Regulations amid Administration Shift
In a move that signals potential policy shifts under the new administration, the U.S. Court of Appeals for the District of Columbia Circuit granted EPA’s requests for 60-day stays in two high-profile cases challenging Biden-era PFAS regulations. The stays, issued on February 7 and February 25, 2025, temporarily pause litigation over EPA’s maximum contaminant levels (MCLs) for several per- and polyfluoroalkyl substances (PFAS) under the Safe Drinking Water Act and the agency’s designation of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Both stays were requested by the EPA and its new administrator, Lee Zeldin, as the second Trump administration appears to be reassessing its approach to PFAS regulation. The move raises questions about whether the administration will revise or rescind these regulations.
EPA Issues Proposed Rule Adding New PFAS to the Toxics Release Inventory (TRI)
On October 1, 2024, the U.S. Environmental Protection Agency (EPA) proposed to add 16 individual per- and polyfluoroalkyl substances (PFAS) as well as 15 PFAS categories, representing over 100 PFAS to the Toxics Release Inventory (TRI) under Section 313 of the Emergency Planning and Community Right-to-Know Act (EPCRA). This proposal would be a significant expansion to the database. EPA is also proposing to set a reporting threshold of 100 pounds for manufacture, processing and other uses, consistent with previously set PFAS TRI reporting requirements. As proposed, all the PFAS in one category would count toward the 100-pound threshold of a given category. Last, the proposal aims to clarify how PFAS are automatically added to the TRI under the National Defense Authorization Act for Fiscal Year 2020 (NDAA) by clarifying how EPA finalizes toxicity values.
EPA Gathering Information for Another Possible TSCA Section 6 Rulemaking
On September 30, 2024, the U.S. Environmental Protection Agency (EPA) issued a notice seeking comment on the manufacture of certain per- and polyfluoroalkyl substances (PFAS) during the fluorination of high-density polyethylene (HDPE), which is used to produce plastic containers used for various household consumer, commercial and industrial products. The notice marks the latest step in EPA’s attempt to regulate plastic fluorination and potential concurrent PFAS contamination under Section 6 of the Toxic Substances Control Act (TSCA).
Chemical Conundrum: TSCA at the Forefront of PFAS Regulation
The Toxic Substances Control Act (TSCA) has been regulating new and existing chemicals for almost 50 years. Under the TSCA, the EPA was given broad authority to track the thousands of existing commercial chemicals and regulate any new chemicals before they enter the market.
The TSCA requires manufacturers that intend to use a chemical that is designated as a “significant new use” to notify the EPA at least 90 days before they manufacture, import or process the chemical for that use, i.e., the “significant new use rule” (SNUR). This pre-manufacture notice requirement gives the EPA the opportunity to evaluate the potential use and, if necessary, to place restrictions on the chemical or prohibit its use to manage any risks before they can occur.
EPA Finalizes Rule Designating PFAS Substances as “Hazardous Substances” Under CERCLA
On April 19, 2024, the Environmental Protection Agency (EPA) finalized its long-awaited rule designating two PFAS compounds, perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), as “hazardous substances” under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA or Superfund). The final rule will take effect 60 days after EPA publishes it in the Federal Register.
PFAS Hazardous Substance Designation Clears White House Review, Nearing Finalization
The Biden Administration is continuing its efforts to regulate per- and polyfluoroalkyl substances (PFAS). On April 15, 2024, the White House Office of Management and Budget (OMB) completed its review of an Environmental Protection Agency (EPA) proposal designating two PFAS compounds, perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), as “hazardous substances” under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA).