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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Jan 21, 2026
All Titles
Title 21
Chapter I
Part 179 -
Subpart A - Subpart A [Reserved]
Subpart B [§ 179.21 - § 179.43] - Subpart B—Radiation and Radiation Sources
Subpart C [§ 179.45 - § 179.45] - Subpart C—Packaging Materials for Irradiated Foods
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