In determining the admissibility of an alien who has been convicted of a violation of any law or regulation of a State, the United States, or a foreign country relating to a controlled substance, the term controlled substance as used in section 212(a)(23) of the Act, shall mean the same as that referenced in the Controlled Substances Act, 21 U.S.C. 801 , et seq., and shall include any substance contained in Schedules I through V of 21 CFR 1308.1 , et seq. For the purposes of this section, the term controlled substance includes controlled substance analogues as defined in 21 U.S.C. 802(23) and 813 .
8 C.F.R. §1212.11