Entering BARC property or the operation of a motor vehicle thereon, by a person under the influence of intoxicating beverages or narcotic drug, hallucinogen, marihuana, barbiturate, or amphetamine (unless prescribed by a physician) or the consumption of such beverages, or the use of any such drug or substance in or on BARC property, is prohibited.
7 C.F.R. §502.8