All Knowledge & Insights By Date

The U.S. Environmental Protection Agency (EPA) announced on January 5, 2026, the availability of the final risk evaluation under the Toxic Substances Control Act (TSCA) for 1,3-butadiene. 91 Fed. Reg. 264. EPA states in its December 31, 2025, press release that it found “potential unreasonable health risks for workers who breathe in this chemical at their jobs in 11 specific industrial settings.” As required by TSCA, EPA will now develop a risk management rule to protect workers from the...

On December 3, 2025, the U.S. Environmental Protection Agency (EPA) announced the availability of and solicited public comment on an Updated Draft Risk Calculation Memorandum (Draft Memorandum) to inform a revised draft risk evaluation for formaldehyde under the Toxic Substances Control Act (TSCA). 90 Fed. Reg. 55726. EPA states that after further consideration of comments raised during the scientific peer review process, it is reconsidering the use of certain hazard values in the formaldehyde...

On November 19, 2025, the U.S. Environmental Protection Agency (EPA) announced the availability of and requested comment on a draft risk evaluation under the Toxic Substances Control Act (TSCA) for 1,2-dichloroethane (Chemical Abstracts Service Registry Number® (CAS RN®) 107-06-2, also known as ethylene dichloride or EDC). 90 Fed. Reg. 52054. EPA notes that the purpose of risk evaluations under TSCA is to determine whether a chemical substance presents an unreasonable risk of injury to health...

On September 23, 2025, the U.S. Environmental Protection Agency (EPA) proposed highly anticipated amendments to the procedural framework rule for conducting existing chemical risk evaluations under the Toxic Substances Control Act (TSCA). 90 Fed. Reg. 45690. When conducting an existing chemical risk evaluation under TSCA, EPA must determine whether a chemical substance presents an unreasonable risk of injury to health or the environment, without considering costs or nonrisk factors, including...

On June 25, 2025, Bergeson & Campbell, P.C. (B&C®), the Environmental Law Institute (ELI), and the George Washington University (GWU) Milken Institute School of Public Health presented “TSCA Reform -- Nine Years Later.” This virtual conference marked the ninth Toxic Substances Control Act (TSCA) Annual Conference, reflecting on the accomplishments and challenges since the implementation of the 2016 Frank R. Lautenberg Chemical Safety for the 21st Century Act (Lautenberg Act) and...

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 its risk...

On December 13, 2024, the U.S. Environmental Protection Agency (EPA) published a final Health and Safety Reporting Rule under the Toxic Substances Control Act (TSCA) to require manufacturers (including importers) of 16 chemical substances to submit copies and lists of certain unpublished health and safety studies to EPA. 89 Fed. Reg. 100756. The rule applies to manufacturers in the North American Industrial Classification System (NAICS) codes for chemical manufacturing (NAICS code 325) and...

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...

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...

The U.S. Environmental Protection Agency (EPA) released a final rule on April 23, 2024, that amends the procedural framework rule for conducting risk evaluations under the Toxic Substances Control Act (TSCA). According to the final rule, published in the Federal Register on May 3, 2024, EPA reconsidered the procedural framework rule for conducting such risk evaluations and is revising certain aspects of that framework to align better with the statutory text and applicable court...