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TSCA Chemical Substance Inventory

TSCA Inventory Notification (Active-Inactive) Rule

The Toxic Substances Control Act (TSCA), as amended by the Frank R. Lautenberg Chemical Safety for the 21st Century Act, requires EPA to designate chemical substances on the TSCA Chemical Substance Inventory as either “active” or “inactive” in U.S. commerce. To accomplish that, EPA finalized a rule requiring industry reporting of chemicals manufactured (including imported) or processed in the U.S. over the past 10 years, ending on June 21, 2016. This reporting will be used to identify which chemical substances on the TSCA Inventory are active in U.S. commerce and will help inform the prioritization of chemicals for risk evaluation. The reporting period for manufacturers (includes importers) ended on February 7, 2018, and the reporting period for processors ends on October 5, 2018. Additionally, active and inactive designations for each chemical substance will be included as part of the Agency’s regular publications of the TSCA Inventory.