Code of Federal Regulations Title 31. Money and Finance–Treasury § 31.91.8 Alcoholic beverages, narcotics, hallucinogenic and dangerous drugs

Entering or being on the property, or operating a motor vehicle thereon by a person under the influence of alcoholic beverages, narcotics, hallucinogenic or dangerous drugs is prohibited. The use of any narcotic, hallucinogenic or dangerous drug in or on the property is prohibited. The use of alcoholic beverages in or on the property is prohibited except on occasions and on property upon which the Director of the Mint has for appropriate official uses granted and exemption permit in writing.