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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 21
Chapter I
Part 173 - PART 173—SECONDARY DIRECT FOOD ADDITIVES PERMITTED IN FOOD FOR HUMAN CONSUMPTION
Subpart A [§ 173.5 - § 173.75] - Subpart A—Polymer Substances and Polymer Adjuvants for Food Treatment
Subpart B [§ 173.110 - § 173.170] - Subpart B—Enzyme Preparations and Microorganisms
Subpart C [§ 173.210 - § 173.290] - Subpart C—Solvents, Lubricants, Release Agents and Related Substances
Subpart D [§ 173.300 - § 173.405] - Subpart D—Specific Usage Additives
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