43 C.F.R. § 423.44 Controlled substances.
Title 43 - Public Lands: Interior
You must not possess, consume, deliver, or be under the influence of, controlled substances included in schedules I, II, III, IV, or V of part B of the Controlled Substance Act (21 U.S.C. 812) on Reclamation facilities, lands, or waterbodies, unless the controlled substance was legally obtained through a valid prescription or order.
Title 43: Public Lands: Interior
PART 423—PUBLIC CONDUCT ON BUREAU OF RECLAMATION FACILITIES, LANDS, AND WATERBODIES
Subpart C—Rules of Conduct
§ 423.44 Controlled substances.