Foreign trade zone

Definition of Foreign trade zone

Areas within the United States, but outside the customs zone, where foreign merchandise may be brought without formal customs entry and payment of duty for virtually any legal purpose including storage, grading, sampling, cleaning, or packaging. Duties are paid when the products enter the U.S. market. See also Free port.

That's the definition of Foreign trade zone in Black's Law Dictionary 6th Edition. Courtesy of

Official tim editorial.