U.S. TSCA Chemical Substance Inventory

The Toxic Substances Control Act (TSCA) became law on October 11, 1976, and became effective on January 1, 1977.TSCA Chemical Substance Inventory contains all existing chemical substances and confidential substances. If you want to obtain specific information of confidential substances, please search the TSCA Confidential Inventory by filing a bona fide intent request (BFI Request) to EPA.