19 C.F.R. § 162.62
Upon compliance with the provisions of the Controlled Substances Act (84 Stat. 1242; 21 U.S.C. 801), the Controlled Substances Import and Export Act (84 Stat. 1285; 21 U.S.C. 951), and the regulations of the Drug Enforcement Administration (21 CFR 1301.28, 1311.27), controlled substances listed in schedules I through V of the Controlled Substances Act may be held:
[T.D. 72-211, 37 FR 16488, Aug. 15, 1972, as amended by T.D. 78-99, 43 FR 13062, Mar. 29, 1978]