43 C.F.R. § 421.7 Alcoholic beverages and narcotics.
Title 43 - Public Lands: Interior
Operating a motor vehicle on property by a person under influence of alcoholic beverages, narcotic drugs, hallucinogens, marijuana, barbiturates, or amphetamines is prohibited. Entering property under the influence of any narcotic drug, hallucinogen, marijuana, barbiturate, amphetamine, or alcoholic beverage is prohibited (unless prescribed by a physician). The use or possession of any narcotic drug, hallucinogen, marijuana, barbiturate, amphetamine, or alcoholic beverage on property is prohibited (unless prescribed by a physician).
Title 43: Public Lands: Interior
PART 421—RULES OF CONDUCT AT HOOVER DAM
§ 421.7 Alcoholic beverages and narcotics.
