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Last Updated on April 24, 2025
Under the 2016 TSCA amendments, EPA has 90 days to review and make a determination on a new chemical before the manufacturer can commence production of the new substance (or import the substance) can enter the marketplace. If needed, TSCA authorizes EPA to extend the review period by an additional 90 days, totaling 180 days.
Of the 436 new chemicals under TSCA review, 21 have been reviewed within the 90-Day TSCA-mandated review period.
415 new chemicals, representing 95.2% of active PMN cases, have been under EPA review for more than 90 days. The 90-day backlog of PMN cases increased by 2.5% since March 13, 2025.
298 active PMN cases, or 68.3%, have been under review for 365 days or more. The 365-day backlog has increased by 1.01% since March 13, 2025.
As the demand for innovative chemistries grows, the backlog of new chemicals awaiting TSCA review beyond the 90-day period is impeding investments in the production of new and innovative chemicals here in the United States.
70% of ACC member companies surveyed reported choosing to introduce new chemicals outside the U.S. due to uncertainties and challenges with the EPA’s New Chemicals Program.
Since June 22, 2016, there have been 36 PMN reviews completed within the 90-Day TSCA-mandated review period.
* The data above spans from 2017 to the present and is updated monthly. It is collected from two EPA public sources and may contain discrepancies. This information reflects the status of EPA’s progress completing TSCA new chemicals reviews.