18 U.S.C. § 1263: Marks and labels on packages

Whoever knowingly ships into any place within the United States any package containing any spirituous, vinous, malted, or other fermented liquor, or any compound containing any spirituous, vinous, malted, or other fermented liquor fit for use for beverage purposes, unless such shipment is accompanied by copy of a bill of lading, or other document showing the name of the consignee, the nature of its contents, and the quantity contained therein, shall be fined under this title or imprisoned not more than one year, or both.