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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 9
Chapter III
Part 424
Subpart C - Subpart C—Food Ingredients and Sources of Radiation
§ 424.21 - Use of food ingredients and sources of radiation.
§ 424.22 - Certain other permitted uses.
§ 424.23 - Prohibited uses.
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