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October 14, 2025
Lynn L. Bergeson, “Defining Risk: EPA Seeks Major TSCA Chemical Evaluation Reforms,” Chemical Processing, October 13, 2025.
On Sept. 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). When conducting a TSCA existing chemical risk evaluation, EPA must determine whether a chemical substance presents an unreasonable risk of injury to health or the environment, without considering costs or non-risk factors under the conditions of use (COU). As...