Regulations last checked for updates: Jan 07, 2026

Title 9 - Animals and Animal Products last revised: Oct 30, 2025
All TitlesTitle 9Chapter IIIPart 531 - PART 531—DEFINITIONS
authority: 7 U.S.C. 138f; 7 U.S.C. 450; 21 U.S.C. 601-602,606,624; 7 CFR 2.7, 2.18, 2.53
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