A device subject to § 10310 of this chapter shall be exempt from 21 U.S.C. § 352(f)(1) 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.
D.C. Mun. Regs. tit. 22, r. 22-B10315