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TSCA Chemical Substance Inventory

  • TSCA Chemical Substance Inventory

    The Toxic Substances Control Act (TSCA) Chemical Substance Inventory contains all existing chemical substances manufactured, processed, or imported in the United States that do not qualify for an exemption or exclusion under TSCA. This may be your starting place for interaction with EPA on TSCA regulatory matters.

Learn About the TSCA Inventory

  • Overview
  • Why is a chemical on the Inventory?
  • How are chemicals added to the Inventory?
  • Nanoscale substances and the Inventory
  • Completeness, accuracy and legal standing

Amended TSCA and the Inventory

  • Learn about the Procedures for Review of CBI Claims for the Identity of Chemicals on the TSCA Inventory Rule 
  • Learn about the TSCA Inventory Notification (Active-Inactive) Rule
  • Download materials about NOA Form B reporting

Access the TSCA Inventory

  • Download the Inventory
  • Help with your Inventory searches 
  • Alternate ways to access the Inventory

Policy and Guidance

  • Policy statements and guidance documents
  • Creating generic names
  • Complex Reaction Products
  • Mixtures: Formulated and Statutory Mixtures
  • Nanoscale Substances
  • Polymeric Substances
  • Revocation of Guidelines for Making Corrections to the TSCA Inventory
  • UVCBs 
  • Varying Carbon Chain Lengths

News

  • Access the January 2025 TSCA Inventory
  • Notice to Revoke the 1980 Inventory Correction Guidelines
  • Learn about procedures for reviewing CBI Claims for active chemical identities on the TSCA inventory
Get Our News
Sign Up for Announcements Related to TSCA
 
Related TSCA Information
  • Confidential business information
  • Find scientific and regulatory information
  • Reviewing new chemicals 
  • Assessing and managing existing chemicals 
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 28, 2025
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