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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. 569

Food Contact Substance: 5-Chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, mixture of, at a ratio of 3 parts to 1 part by weight. The mixture may contain magnesium or sodium nitrate at a 1 to 1 ratio (weight/weight) with the sum of the isothiazolinone ingredients.
National Environmental Policy Act (NEPA) Submission: Categorical Exclusion 25.32(q)
FDA Decision: Categorical Exclusion Memo
FCN Premarket Authorization Issued: FCN 569 description
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