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  2. Reviewing New Chemicals under the Toxic Substances Control Act (TSCA)

Orders for a Significant New Use of Certain Chemical Substances (PFuDA, PFDoA, PFTrDA, PFTeDA, PFHxDA, PFODA) and (PFOA, PFDA, PFNA) [Vacated]

Below are EPA's orders issued to Inhance Technologies LLC in December 2023 directing it not to produce PFuDA, PFDoA, PFTrDA, PFTeDA, PFHxDA, PFODA, PFOA, PFDA, and PFNA. On March 21, 2024, the U.S. Court of Appeals for the Fifth Circuit vacated these orders.  

Publicly available versions of the orders have confidential business information removed. 

  • TSCA Section 5 Order for a Significant New Use of Certain Chemical Substances (PFuDA, PFDoA, PFTrDA, PFTeDA, PFHxDA and PFODA) [Vacated] (pdf) (19.13 MB)
  • TSCA Section 5 Order for a Significant New Use of Certain Chemical Substances (PFOA, PFDA, PFNA) [Vacated] (pdf) (16.65 MB)

Reviewing New Chemicals under the Toxic Substances Control Act (TSCA)

  • Basic Information
  • EPA's Review Process
  • Filing a Premanufacture Notice with EPA
  • Regulatory Actions Under TSCA section 5
  • Premanufacture Notice Status
Reviewing New Chemicals under TSCA Contact Us
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Last updated on January 22, 2025
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