U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 28, 2025

All TitlesTitle 21Chapter IPart 25Subpart C - Subpart C—Categorical Exclusions
§ 25.30 - General.
§ 25.31 - Human drugs and biologics.
§ 25.32 - Foods, food additives, and color additives.
§ 25.33 - Animal drugs.
§ 25.34 - Devices and electronic products.
§ 25.35 - Tobacco product applications.
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