EPA Orders HFPO, PFAS Testing From DuPont, 3M and Chemours

Jan. 6, 2023
Second order requires companies to conduct additional testing or supporting information missed in the initial EPA search.
The U.S. Environmental Protection Agency (EPA) has issued the next Toxic Substances Control Act (TSCA) test order requiring certain manufacturers to test for per- and polyfluoroalkyl substances (PFAS) and hexafluoropropylene oxide (HFPO) under EPA’s the National PFAS Testing Strategy. This is the second test order under the strategy.
HFPO (CASRN 428-59-1) is used in making plastics and in organic chemical manufacturing. More than 1,000,000 pounds of HFPO are manufactured each year, according to TSCA Chemical Data Reporting rule reports.The information EPA receives under this order improve the agency’s understanding of human health effects of both HFPO and dozens of PFAS that are structurally similar to HFPO. These other substances are in the same testing strategy category of PFAS as HFPO.
Companies impacted by the test order include Chemours Company, DuPont De Nemours Inc., E. I. du Pont de Nemours and Company and 3M Company.
The companies subject to the test order may either conduct the tests as described in the order, including testing of physical-chemical properties and health effects following inhalation, or provide EPA with existing information that they believe EPA did not identify in its search.

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