Intoxicating liquors having 0.5 percent or more alcoholic content are nonmailable. Taxable liquors with 3.2 percent or less alcohol, including those obtained under a prescription or as a collector’s item, also are nonmailable. The prohibition of the mailing of intoxicating liquors is contained in federal law (18 U.S.C. 1716).
Intoxicating liquor is exempt from the prohibition against mailing when it is sent between employees of federal or state agencies who have an official use for the liquor, such as for testing purposes. This exemption is based on the intent of the law to prevent liquor from being transported to prohibited jurisdictions for consumption and to ensure that all proper tax revenues are paid.