The U.S. Environmental Protection Agency (EPA) announced on January 9, 2023, the availability of the final revision to the risk determination for trichloroethylene (TCE) risk evaluation issued under the Toxic Substances Control Act (TSCA). 88 Fed. Reg. 1222. EPA determined that TCE, as a whole chemical substance, presents an unreasonable risk of injury to human health when evaluated under its conditions of use (COU). EPA states that the revision to the risk determination reflects its announced policy changes to ensure the public is protected from unreasonable risks from chemicals in a way that is supported by science and the law. For more information and our Commentary, please read the full memorandum.