Regulations last checked for updates: Jan 13, 2026

Title 21 - Food and Drugs last revised: Dec 18, 2026
All TitlesTitle 21Chapter IPart 343Subpart D - Subpart D—Testing Procedures
authority: 21 U.S.C. 321,351,352,353,355,360,371
source: 63 FR 56814, Oct. 23, 1998, unless otherwise noted.
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