All Knowledge & Insights By Date

The U.S. Environmental Protection Agency (EPA) announced on March 24, 2026, that it will propose to extend certain compliance dates in the December 2024 final risk management rules for perchloroethylene (PCE) and carbon tetrachloride (CTC) under the Toxic Substances Control Act (TSCA). According to EPA, it continues to revise the final rules “to ensure they are practical and implementable to protect human health and the environment and maintain uses that power the U.S. economy.” Until EPA...

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 manufacture,...

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...

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, among other...

The U.S. Environmental Protection Agency (EPA) announced on October 19, 2023, a proposed rule that would amend the procedural framework rule for conducting risk evaluations under the Toxic Substances Control Act (TSCA). Published in the Federal Register on October 30, 2023, the proposed rule states that the purpose of risk evaluations under TSCA is to determine whether a chemical substance presents an unreasonable risk of injury to health or the environment, without considering costs or...