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ARTICLE · 06 FEBRUARY 2023

EPA Proposes Significant New Use Rule For The Manufacturing Or Processing Of 330 Inactive PFAS

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On January 26, 2023, the US Environmental Protection Agency (EPA) issued a proposed significant new use rule (SNUR), under the Toxic Substances Control Act (TSCA)...

United StatesEnvironment
Seth Goldberg
Seth Goldberg
Sara Beth Watson
Sara Beth Watson
Sally Mordi
Sally Mordi
Chris Yeatman
Chris Yeatman

On January 26, 2023, the US Environmental Protection Agency (EPA) issued a proposed significant new use rule (SNUR), under the Toxic Substances Control Act (TSCA), for those per- and poly-fluoroalkyl substances (PFAS) that are currently on the TSCA Chemical Substance Inventory but which have not been actively manufactured (including imported) or processed in the US since June 21, 2006 and are consequently designated as inactive on the TSCA Inventory.1 EPA is seeking public comment on the proposal.

For purposes of the proposed SNUR, the definition of PFAS includes chemicals that contain at least one of three structures:

  • R-(CF2)-CF(R′)R″, where both the CF2 and CF moieties are saturated carbons.

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