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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. 517

Food Contact Substance: Polysulfone-polyphenylene sulfone block copolymer CAS name: [1,1'-Biphenyl]-4,4'-diol, polymer with 4,4'-(1-methylethylidene)bis[phenol] and 1,1'-sulfonylbis[4-chlorobenzene] (CAS Reg. No. 27757-21-7).
Environmental Assessment NEPA Submission: Categorical Exclusion 25.32(j)
FDA Decision: Categorical Exclusion Memo
FCN Premarket Authorization Issued: FCN description

More about Environmental Decisions and Definitions of Environmental Terms.
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