All Knowledge & Insights By Date

The U.S. Environmental Protection Agency (EPA) announced on April 14, 2026, a new initiative called PFAS OUTreach -- or PFAS OUT. According to EPA, the new effort proactively works with communities and water systems to reduce exposure to perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) in drinking water, “years ahead of compliance with federal regulatory requirements.” EPA states that it aims to engage directly about 3,000 drinking water systems nationwide that have...

On December 18, 2025, the House Energy and Commerce Subcommittee on Environment will hold a hearing on “Examining the Impact of EPA’s CERCLA Designation for Two PFAS Chemistries and Potential Policy Responses to Superfund Liability Concerns.” In May 2024, the U.S. Environmental Protection Agency (EPA) issued a final rule designating perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), and their salts and structural isomers as hazardous substances under the Comprehensive...

The U.S. Environmental Protection Agency (EPA) announced on September 17, 2025, its next steps regarding regulatory efforts to address cleanup of perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS). On May 8, 2024, EPA designated PFOA, PFOS, and their salts and structural isomers as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Under the rule, entities are required to report immediately releases of PFOA and PFOS...

On April 17, 2025, the U.S. Environmental Protection Agency (EPA) extended the comment period on a draft risk assessment of the potential human health risks associated with the presence of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) in biosolids, also known as sewage sludge. 90 Fed. Reg. 16128. According to EPA, the draft risk assessment “reflects the agency’s latest scientific understanding of the potential risks to human health and the environment posed by the...

On February 21, 2025, the U.S. Environmental Protection Agency (EPA) extended the comment deadline for the January 17, 2025, proposed rule to clarify the timeframe for when companies must first notify a customer that one of its mixtures or trade name products contains a per- or polyfluoroalkyl substance (PFAS) listed on the Toxics Release Inventory (TRI). 90 Fed. Reg. 10043. As reported in our January 22, 2025, blog item, the Biden EPA proposed the rule in response to questions from industry...

The U.S. Environmental Protection Agency (EPA) announced on January 14, 2025, a draft risk assessment of the potential human health risks associated with the presence of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) in biosolids, also known as sewage sludge. According to EPA, the findings show that there may be human health risks associated with exposure to PFOA or PFOS with all three methods of using or disposing of sewage sludge -- land application of biosolids,...

On November 14, 2024, the U.S. Environmental Protection Agency (EPA) announced the release of its third annual progress report, “highlighting the significant achievements the agency has made under its PFAS Strategic Roadmap and the Biden-Harris Administration’s whole-of-government strategy to protect communities from the impacts of forever chemicals.” According to EPA’s press release, progress on per- and polyfluoroalkyl substances (PFAS) during the Biden-Harris Administration includes:...

Public Employees for Environmental Responsibility (PEER) announced on May 28, 2024, that it filed a request for correction (RFC) under the Information Quality Act (IQA) regarding a U.S. Environmental Protection Agency (EPA) research memorandum entitled “Verification Analysis for PFAS in Pesticide Products (ACB Project B23-05b)” dated May 18, 2023, and the accompanying press release. As reported in our June 2, 2023, memorandum, EPA completed a verification analysis of a study published in...

On April 19, 2024, the U.S. Environmental Protection Agency (EPA) announced a final rule that will designate perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), and their salts and structural isomers as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). EPA states that under the rule, entities are required to report immediately releases of PFOA and PFOS that meet or exceed the reportable quantity (RQ) of one pound within...

On September 6, 2022, the U.S. Environmental Protection Agency proposed to designate perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), including their salts and structural isomers, as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). 87 Fed. Reg. 54415. According to EPA, “[s]uch a designation would ultimately facilitate cleanup of contaminated sites and reduce human exposure to these ‘forever’...

review of a proposed rule that would designate perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) as hazardous substances under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Such designations would require facilities to report on PFOA and PFOS releases that meet or exceed the reportable quantity. Publication of the proposed rule in the Federal Register will begin a public comment period. As reported in our October 19,...

On July 28, 2022, the National Toxicology Program (NTP) announced that the following revised Technical Reports on the Toxicity Studies are available on the NTP website: Perfluoroalkyl Sulfonates (Perfluorobutane Sulfonic Acid, Perfluorohexane Sulfonate Potassium Salt, and Perfluorooctane Sulfonic Acid) Administered by Gavage to Sprague Dawley (Hsd:Sprague Dawley SD) Rats (Revised TOX-96); and  Perfluoroalkyl Carboxylates (Perfluorohexanoic Acid, Perfluorooctanoic Acid,...

The U.S. Environmental Protection Agency (EPA) announced on October 26, 2021, that it is acting upon a petition from New Mexico Governor Michelle Lujan Grisham (D) to address per- and polyfluorinated substances (PFAS) under the Resource Conservation and Recovery Act (RCRA). EPA states that in responding to the petition, it outlined plans to initiate the rulemaking process for two new RCRA actions, “reflecting the agency’s focus on using best available science and leveraging authorities...

On August 1, 2018, the U.S. Senate Committee on Environment and Public Works (EPW Committee) held a hearing entitled “Examining EPA’s Agenda:  Protecting the Environment and Allowing America’s Economy to Grow.”  Testifying at the hearing was Andrew Wheeler, the U.S. Environmental Protection Agency’s (EPA) Acting Administrator.  Witness testimony and an archive of the hearing are available online.  The hearing was intended to provide Wheeler with the opportunity...

On May 22-23, 2018, the U.S. Environmental Protection Agency (EPA) hosted a Polyfluoroalkyl Substances (PFAS) National Leadership Summit (Summit) in Washington, D.C.  The Summit convened federal and state regulators, including representatives from EPA’s Office of Water (OW), EPA’s Office of Chemical Safety and Pollution Prevention (OCSPP), the U.S. Food and Drug Administration (FDA), the U.S. Department of Defense (DOD), a small group of invited industry participants, and...