Now Available: Latest Update to the TSCA Inventory

Released August 16, 2023

The latest Toxic Substances Control Act (TSCA) Chemical Substance Inventory is now available on EPA’s website. 

This update to the public TSCA Inventory is part of EPA’s biannual posting of non-confidential Inventory data. The next regular update of the TSCA Inventory is planned for winter 2024. 

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., SNURs and test orders). 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. 

The TSCA inventory is a list of all existing chemical substances manufactured, processed, or imported in the U.S. For more information on the TSCA Inventory, please visit https://www.epa.gov/tsca-inventory.