21 CFR 201.125 : Food And Drugs (§ 1.1 To Parts 1403-1499) — (§ 200.5 To § 299.5) — Food And Drug Administration, Department Of Health And Human Services (Continued) (§ 200.5 To § 299.5) — Drugs: General (§ 200.5 To § 299.5) — Labeling (§ 201.1 To Appendix A To Part 201) — Exemptions From Adequate Directions For Use (§ 201.100 To § 201.129) — Drugs for use in teaching, law enforcement, research, and analysis.

A drug subject to § 201.100 or § 201.105, shall be exempt from section 502(f)(1) of the act if shipped or sold to, or in the possession of, persons regularly and lawfully engaged in instruction in pharmacy, chemistry, or medicine not involving clinical use, or engaged in law enforcement, or in research not involving clinical use, or in chemical analysis, or physical testing, and is to be used only for such instruction, law enforcement, research, analysis, or testing.