Controlled substance
Controlled substance means a drug or other substance, or immediate precursor, included in schedules I, II, III, IV, or V of part B of the Controlled Substance Act (21 U.S.C. 812) or a drug or substance added to these schedules pursuant to the terms of the Act.
Source
36 CFR § 1.4
Scoping language
The following definitions shall apply to this chapter, unless modified by the definitions for a specific part or regulation: