29 C.F.R. § 94.610 Controlled substance.
Title 29 - Labor
Controlled substance means a controlled substance in schedules I through V of the Controlled Substances Act (21 U.S.C. 812), and as further defined by regulation at 21 CFR 1308.11 through 1308.15.
Title 29: Labor
PART 94—GOVERNMENTWIDE REQUIREMENTS FOR DRUG-FREE WORKPLACE (FINANCIAL ASSISTANCE)
Subpart F—Definitions
§ 94.610 Controlled substance.