Blogs

On November 14, 2025, the U.S. Environmental Protection Agency (EPA) further postponed the effective date of the Toxic Substances Control Act (TSCA) Section 6(g) exemption requirements in the final risk management rule for tricholoroethylene (TCE) until February 17, 2026. 90 Fed. Reg. 51027. According to EPA’s November 13, 2025, press release, “[t]his will ensure that the timing of EPA’s administrative stay aligns with the court’s timeframe for this action.” EPA’s December 17, 2024,...

The U.S. Environmental Protection Agency (EPA) has posted a web page entitled “Pesticides Containing a Fluorinated Carbon.” EPA states that among other classes of pesticides, it “occasionally receives and evaluates registration applications for products containing one or more fluorinated carbons.” According to EPA, per- and polyfluoroalkyl substances (PFAS) are defined “in certain contexts” as substances containing two or more fluorinated carbons, and in others as substances...

On November 19, 2025, the U.S. Senate Committee on Environment and Public Works will hold a hearing examining per-and polyfluoroalkyl substance (PFAS) cleanup and disposal policy. The Committee is scheduled to hear from the following witnesses: Eric Gerstenberg, Co-Chief Executive Officer, Clean Harbor; Leah Pilconis, General Counsel, Associated General Contractors of America; and Kate R. Bowers, Supervisory Attorney, Congressional Research Service.

On November 10, 2025, the U.S. Environmental Protection Agency (EPA) announced that it is rescheduling the November 18, 2025, preparatory meeting for the Science Advisory Committee on Chemicals (SACC). The meeting to consider the scope and clarity of the draft charge questions for SACC’s peer review of EPA’s draft risk evaluation for octamethylcyclotetrasiloxane (D4) will now be held virtually on December 1, 2025. Registration for the meeting is open. To present oral comments during the...

The U.S. Environmental Protection Agency (EPA) announced on November 10, 2025, that it will publish a final rule extending the compliance date for laboratories using methylene chloride to ensure long-term compliance with the requirements of the May 2024 final risk management rule. According to EPA, the final rule will extend the Workplace Chemical Protection Program (WCPP) compliance dates for non-federal laboratories by an additional 18 months, aligning them with the dates required for federal...

On Wednesday, November 5, 2025, the Supreme Court of the United States heard arguments on executive tariff authority, a case that promises to have ripple effects far beyond the bounds of pure trade law. Trump v. V.O.S. Selections, Inc., No. 25-250. In the chemical sector -- where global chemical feedstocks, complex supply chains, and regulatory compliance are already famously complicated -- the stakes are especially high. If the Court limits or invalidates the President’s ability unilaterally...

On October 29, 2025, Public Employees for Environmental Responsibility (PEER) announced that it filed an Information Quality Act (IQA) request with the U.S. Environmental Protection Agency (EPA) regarding statements on EPA’s website that perfluorooctanoic acid (PFOA) has been phased out of domestic production. According to PEER, two EPA publications on its website contain erroneous information about PFOA: “EPA Questions and Answers About TSCA,” Q8 states: “[Is] … perfluorooctanoic acid...

The Scientific Committee on Consumer Safety (SCCS) announced on October 30, 2025, that the European Commission (EC) requested a scientific opinion on the safety of hydrated silica (nano), pyrogenic silica (nano), silica silylate (nano), and silica dimethyl silylate (nano). The request states that given the continued and widespread use of these silica materials in cosmetic products, and in view of the previous inconclusive assessments by SCCS and the new submission of safety data by industry, the...

The New Mexico Environment Department (NMED) has posted frequently asked questions (FAQ) regarding New Mexico’s Per- and Polyfluoroalkyl Substances (PFAS) Protection Act labeling requirements. As reported in our October 15, 2025, memorandum, NMED petitioned New Mexico’s Environmental Improvement Board (EIB) to adopt a proposed rule to implement the PFAS Protection Act, including labeling requirements, and EIB voted to proceed with the rulemaking during its October 24, 2025, meeting....

On October 14, 2025, BB-REG-NET, a United Kingdom (UK) regulatory science network for biobased and biodegradable materials, published a report entitled “Addressing Persistent Plastic Pollution: The Case for Biodegradable Solutions.” Alder BioInsights conducted a literature review of the evidence around the presence, impact, and persistence of microplastics in the open environment due to the use of biodegradable materials. The report documents evidence from case studies in agriculture,...

The Organisation for Economic Co-operation and Development (OECD) has published a draft guidance document on in vitro testing for intestinal fate of orally ingested nanomaterials. According to OECD, the new guidance document “would establish a conceptual framework and procedures for determining intestinal fate of orally ingested nanomaterials using an integrated in vitro approach simulating the human [gastrointestinal tract] environment.” The primary objective of the draft guidance document...

The European Bioeconomy Alliance (EUBA) announced on October 1, 2025, the release of an expert paper from the nova-Institute entitled “Benefits of Using First-Generation Biomass for Food, Fuels, Chemicals and Derived Materials in Europe: Science-based Argumentation Paper.” According to EUBA’s October 1, 2025, press release, using first-generation agricultural biomass (i.e., crops like cereals, sugar, and oil plants) to produce biobased energy and materials in Europe results in important...

On October 22, 2025, the United Nations Environment Program (UNEP) announced the availability of a report entitled The Climate Technology Progress Report 2025: Advancing Biobased Technologies in the Bioeconomy, which finds that biobased technologies, such as the conversion of food waste into fuel, could reduce reliance on fossil fuels, lowering greenhouse gas emissions and helping countries combat climate change. UNEP states that as technical innovation is making biobased technologies more...

On October 29, 2025, the Senate Committee on Environment and Public Works favorably reported several nominations, including Jeffrey Hall to be an Assistant Administrator for the Office of Enforcement and Compliance Assurance (OECA) at the U.S. Environmental Protection Agency (EPA) and Douglas Troutman to be Assistant Administrator for Toxic Substances at EPA, each by a vote of ten to nine along party lines. The Committee considered Hall’s nomination during a July 23, 2025, hearing, during...

Senator Chuck Grassley (R-IA) announced on October 2, 2025, that he led over 45 Senate and House colleagues in urging the U.S. Environmental Protection Agency (EPA) to issue a final rule on imported Renewable Identification Numbers (RIN) and hold firm on the proposed biomass-based diesel volumes. As reported in our June 18, 2025, blog item, the proposed rule would reduce the number of RINs generated for imported renewable fuel and renewable fuel produced from foreign feedstocks. The bipartisan,...

On October 21, 2025, the European Commission (EC) announced that it has called for evidence and begun a public consultation on the upcoming Advanced Materials Act, “a key initiative under the Competitiveness Compass.” According to the EC, the Act will establish a strategic framework for the development, deployment, and production of advanced materials. The EC states that advanced materials “are intentionally designed and engineered materials with innovative properties and functionalities,...

As the federal government endures another prolonged shutdown, uncertainty is rippling through every agency, with the impact clearly visible at the U.S. Environmental Protection Agency (EPA). With only a fraction of staff on duty and most routine operations halted, the chemical and pesticide regulatory landscape faces a new round of challenges in both the Office of Pollution Prevention and Toxics (OPPT) and the Office of Pesticide Programs (OPP). EPA’s September 29, 2025, contingency plan...

On October 9, 2025, as part of the reauthorization mandates of the Pesticide Registration Improvement Act of 2022 (PRIA 5), the U.S. Environmental Protection Agency (EPA) announced the availability of two reports prepared from the result of third-party audits that evaluated pesticide registration processes and functions conducted by EPA. According to EPA, the first report provides the results of the audit that focused on assessing the operational performance of EPA’s Office of Pesticide...

On October 23, 2025, the Environment and Public Works Chemical Safety, Waste Management, Environmental Justice, and Regulatory Oversight Subcommittee will hold a hearing on “Examining the Beneficial Use and Regulation of Chemicals.” The Committee is scheduled to hear from the following witnesses: Peter Huntsman, President and Chief Executive Officer (CEO), Huntsman Corporation; Dr. Gwen Gross, Senior Technical Fellow, The Boeing Company; and Dr. Tracey Woodruff, Professor and Director,...

The European Union (EU) Observatory for Nanomaterials (EUON) has contracted the Nanotechnology Industries Association (NIA) and Yordas Group to undertake a study on the assessment of health and environmental hazards and risks of surface-treated nanomaterials. The aim of the study is to review and collect scientific information and data on how surface treatment can affect the properties of nanomaterials and potentially have an impact on their fate and potential risks. The study includes a market...