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August 29, 2023

EPA Announces Latest Update to the TSCA Inventory

Lynn L. Bergeson Carla N. Hutton

The U.S. Environmental Protection Agency (EPA) announced on August 16, 2023, the availability of the latest Toxic Substances Control Act (TSCA) Chemical Substance Inventory. EPA notes that this update to the public TSCA Inventory is part of its biannual posting of non-confidential Inventory data. According to EPA, the Inventory contains 86,718 chemicals, of which 42,242 are active in U.S commerce. Other updates to the TSCA Inventory include updates to commercial activity data, unique identifier data, and regulatory flags (e.g., significant new use rules (SNUR) and test orders). EPA states that additionally, “approximately 500 substances are listed with their specific chemical identities after having been moved from the confidential portion of the Inventory to the public portion as part of ongoing TSCA confidential business information (CBI) review plan efforts.” EPA plans the next regular update of the TSCA Inventory for winter 2024.