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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 28, 2025
All Titles
Title 21
Chapter I
Part 171
Subpart A - Subpart A—General Provisions
§ 171.1 - Petitions.
§ 171.6 - Amendment of petition.
§ 171.7 - Withdrawal of petition without prejudice.
§ 171.8 - Threshold of regulation for substances used in food-contact articles.
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