On March 21, 2025, the U.S. Court of Appeals for the District of Columbia Circuit heard oral argument in a case challenging the U.S. Environmental Protection Agency’s (EPA) May 3, 2024, final rule amending the procedural framework rule for conducting risk evaluations under the Toxic Substances Control Act (TSCA). United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied Industrial and Service Workers International Union (USW) v. EPA, Consolidated Case No. 24-1151. If you have a...
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On March 10, 2025, the U.S. Environmental Protection Agency (EPA) announced its intent to reconsider the May 3, 2024, rule amending the procedural framework rule for conducting risk evaluations under the Toxic Substances Control Act (TSCA) (2024 Risk Evaluation Framework Rule). According to EPA, it will initiate a rulemaking “that will ensure the agency can efficiently and effectively protect human health and the environment and follow the law.” As reported in our February 7, 2025,...
March 12, 2025
EPA Reschedules SACC Meetings to Consider 1,3-Butadiene Draft Risk Evaluation, Will Issue Supplement
The U.S. Environmental Protection Agency (EPA) announced on March 11, 2025, the rescheduled meeting dates of the Science Advisory Committee on Chemicals (SACC) that had been previously scheduled for February 2025 to consider and review the draft risk evaluation for 1,3-butadiene. 90 Fed. Reg. 11737. The rescheduled preparatory meeting for the SACC to consider the scope and clarity of the revised draft charge questions for the peer review will now be held on March 25,...
The U.S. Environmental Protection Agency (EPA) announced on March 7, 2025, that it is extending the comment period on the draft risk evaluation for dicyclohexyl phthalate (DCHP) under the Toxic Substances Control Act (TSCA). EPA released the risk evaluation for DCHP on January 7, 2025, with a comment period that closed March 10, 2025. EPA states that it will soon publish a Federal Register notice extending the public comment period for an additional 60 days....
March 10, 2025
EPA Extends Comment Period on Draft Scope Document for Vinyl Chloride TSCA Risk Evaluation
On March 5, 2025, the U.S. Environmental Protection Agency (EPA) extended the comment period on the draft scope of the risk evaluation to be conducted under the Toxic Substances Control Act (TSCA) for vinyl chloride. 90 Fed. Reg. 11315. As reported in our January 28, 2025, memorandum, under TSCA, the scope documents must include the conditions of use (COU), hazards, exposures, and the potentially exposed or susceptible subpopulations (PESS) that EPA expects to consider in...
The U.S. Environmental Protection Agency (EPA) announced on January 31, 2025, that it is extending the public comment period on the draft risk evaluation for 1,3-butadiene under the Toxic Substances Control Act (TSCA). 90 Fed. Reg. 8798. Comments that were due February 3, 2025, are now due March 5, 2025. EPA states in its announcement that to give the peer reviewers on the Science Advisory Committee on Chemicals (SACC) time to review any additional comments...
On January 16, 2025, the U.S. Environmental Protection Agency (EPA) announced the availability of and requested public comment on the draft scope of the risk evaluation to be conducted under the Toxic Substances Control Act (TSCA) for vinyl chloride. 90 Fed. Reg. 4738. EPA notes that under TSCA, the scope documents must include the conditions of use (COU), hazards, exposures, and the potentially exposed or susceptible subpopulations (PESS) that EPA expects to consider in conducting...
The U.S. Environmental Protection Agency (EPA) announced on September 3, 2024, the release of the draft risk evaluation for diisononyl phthalate (DINP) under the Toxic Substances Control Act (TSCA) for public comment. 89 Fed. Reg. 71270. EPA states in its August 30, 2024, press release that it preliminarily determined that two industrial uses and one consumer use “significantly contribute to the unreasonable risk of DINP out of the 45 uses evaluated.” EPA preliminarily determined that...
July 29, 2024
EPA Begins 90-Day Comment Period on Proposed High-Priority Substance Designations for Five Chemicals
The U.S. Environmental Protection Agency (EPA) announced on July 25, 2024, that it is proposing to designate acetaldehyde, acrylonitrile, benzenamine, vinyl chloride, and 4,4-methylene bis(2-chloroaniline) (MBOCA) as high-priority substances (HPS) for risk evaluation under the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 60420. EPA is providing a 90-day comment period, during which interested persons may submit comments on the proposed designations of these chemicals as HPSs for risk...
May 24, 2024
EPA Releases Draft Risk Evaluation Documents for DIDP and DINP for Public Comment and Peer Review
The U.S. Environmental Protection Agency (EPA) announced on May 20, 2024, the availability of and solicited public comment on the draft manufacturer-requested risk evaluation (MRRE) for di-isodecyl phthalate (DIDP) and the draft physical chemical, fate, and hazard assessments for di-isononyl phthalate (DINP) prepared under the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 43847. In its May 17, 2024, press release, EPA states that it preliminarily determined that all but one of the uses of...