27 C.F.R. § 44.193
Where tobacco products, and cigarette papers and tubes are removed from a factory or an export warehouse and are destined for ultimate delivery in a noncontiguous foreign country, Puerto Rico, the Virgin Islands, or a possession of the United States, but the shipment is to be delivered in the United States to a Federal department or agency, or to an authorized dispatch agent, transportation officer, or port director of such a department or agency for forwarding on to the place of destination of the shipment, the manufacturer or export warehouse proprietor shall consign the shipment to the Federal department or agency, or to the proper dispatch agent, transportation officer, or port director of such department or agency.
27 C.F.R. § 44.193
72 Stat. 1418, as amended; 26 U.S.C. 5704