Foreign Trade Zones

A foreign-trade zone (FTZ) in the United States is a geographical area, in (or adjacent to) a United States Port of Entry, where commercial merchandise, both domestic and foreign receives the same Customs treatment it would if it were outside the commerce of the United States. 

Merchandise of every description may be held in the Zone without being subject to Customs duties and other ad valorem taxes. This tariff and tax relief is designed to lower the costs of U.S.-based operations engaged in international trade and thereby create and retain the employment and capital investment opportunities that result from those operations.

These special geographic areas – Foreign-Trade Zones – are established "in or adjacent to" U.S. Ports of Entry and are under the supervision of the U.S. Customs and Border Protection under the United States Homeland Security Council. Since 1986, U.S. Customs' oversight of FTZ operations has been conducted on an audit-inspection basis known as Compliance Reviews, whereby compliance is assured through audits and spot checks under a surety bond, rather than through on-site supervision by Customs personnel.