An area within a country where imported goods can be stored or processed without being subject to import duty. Also called a 'free zone,' 'free port,' or 'bonded warehouse.' Found on http://www-personal.umich.edu/~alandear/glossary/f.html
(FTZ) An area or zone set aside at or near a port or airport under the control of the US Customs Service, for holding goods duty-free pending Customs clearance. Found on https://scmedu.org/foreigntradezone_ftz_/