All Knowledge & Insights By Date

On March 24, 2025, the U.S. Environmental Protection Agency (EPA) provided an update on the effective date of the Toxic Substances Control Act (TSCA) final risk management rule for trichloroethylene (TCE). As reported in our January 13, 2025, memorandum, on December 17, 2024, EPA issued a final rule prohibiting all uses of TCE, most of which would be prohibited within one year, including TCE manufacture and processing for most commercial and all consumer products. As...

The U.S. Environmental Protection Agency (EPA) released final risk management rules under the Toxic Substances Control Act (TSCA) for trichloroethylene (TCE) and perchloroethylene (PCE) on December 9, 2024, and for carbon tetrachloride (CTC) on December 11, 2024. EPA states that all uses of TCE will be banned over time, with “the vast majority of identified risks eliminated within one year,” and safer alternatives readily available for the majority of uses. The PCE rule will ban...

On December 31, 2024, the U.S. Environmental Protection Agency (EPA) announced the availability of and solicited comment on the preliminary lists of manufacturers (including importers) subject to fees for the next five chemicals undergoing risk evaluation under Section 6(b) of the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 107099. The five chemicals that have been designated as High-Priority Substances (HPS) for risk evaluation and for which fees will be charged are acetaldehyde (Chemical...

Download transcript. Recognizing it has much to do and little time to complete its tasks, the Office of Pollution Prevention and Toxics (OPPT) has been issuing final rules at a fast and furious rate since the election last month. This week, I discuss OPPT’s to-do list with my colleague, Dr. Richard E. Engler, Director of Chemistry for B&C and The Acta Group (Acta®), our consulting affiliate. In addition to multiple final Section 6 risk management rules,...

On November 13, 2024, the U.S. Environmental Protection Agency (EPA) announced the release of its final supplement to the risk evaluation and revised unreasonable risk determination for 1,4-dioxane under the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 89993. EPA states in the Federal Register notice that it “used the best available science to prepare this final supplement to the risk evaluation and has determined that 1,4-dioxane poses unreasonable risk to human health.” EPA notes...

On August 1, 2023, Earthjustice filed a petition under Section 21 of the Toxic Substances Control Act (TSCA) asking the U.S. Environmental Protection Agency (EPA) to establish regulations prohibiting the manufacturing, processing, use, and distribution of the chemical N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) for and in tires. Earthjustice filed the petition on behalf of the Yurok Tribe, the Port Gamble S’Klallam Tribe, and the Puyallup Tribe of Indians, and EPA granted the...

On September 30, 2024, the U.S. Environmental Protection Agency (EPA) requested public comment on the manufacture of certain per- and polyfluoroalkyl substances (PFAS), including perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorodecanoic acid (PFDA), during the fluorination of high-density polyethylene (HDPE) and other plastic containers to inform regulations as appropriate under the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 79581. EPA notes that this request for...

The U.S. Environmental Protection Agency (EPA) issued a proposed rule on August 8, 2024, to address the unreasonable risk of injury to human health presented by 1-bromopropane (1-BP) under its conditions of use (COU) as documented in EPA’s August 2020 Risk Evaluation for 1-BP and the December 2022 Revised Risk Determination for 1-BP prepared under the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 65066. To address the identified unreasonable risk, EPA proposes requirements to,...

On July 25, 2024, the Center for Environmental Health (CEH) and Public Employees for Environmental Responsibility (PEER) filed suit against the U.S. Environmental Protection Agency (EPA) in the U.S. District Court for the District of Columbia seeking a rule under Section 6 of the Toxic Substances Control Act (TSCA) to prohibit the production of perfluorooctanoic acid (PFOA) during Inhance Technologies, LLC’s (Inhance) fluorination process. As reported in our May 23, 2024, blog item on their...

The U.S. Environmental Protection Agency (EPA) announced on July 11, 2024, that it granted a petition filed under Section 21 of the Toxic Substances Control Act (TSCA) requesting that EPA establish regulations under TSCA Section 6 prohibiting the manufacturing, processing, use, distribution in commerce, and disposal of three per- and polyfluoroalkyl substances (PFAS) formed during the fluorination of plastic containers. EPA “will promptly commence an appropriate proceeding under TSCA Section...