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U.S. Department of Health and Human Services

Inventory of Environmental Impact Decisions for Food Contact Substance Notifications

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FCN No. 506

Food Contact Substance: Polyether sulfone-polyphenylene sulfone block copolymer CAS name: [1,1'-Biphenyl]-4,4'-diol, polymer with 1,1'-sulfonylbis(4-chlorobenzene) and 4,4'-sulfonylbis(phenol)
National Environmental Policy Act (NEPA) Submission: Categorical Exclusion 25.32(j)
FDA Decision: Categorical Exclusion Memo
FCN Premarket Authorization Issued: FCN 506 description