What may be placed in a foreign trade zone?
Any foreign or domestic merchandise not prohibited by law or other exception listed below, whether dutiable or not, may be taken into a foreign trade zone. Merchandise which lawfully cannot be imported into the United States is prohibited without exception. Furthermore, a quota on importation cannot be circumvented by placing merchandise subject to such quota into a zone. On the other hand, merchandise for which a quota is filled or for which a quota on entry is established, may be placed into a zone until the quota opens or is removed since foreign trade zones are considered outside the Customs territory for entry purposes. Such products, with the exception of certain textiles (19 CFR 146.63(d)), may be manipulated or manufactured while in the zone into a product not subject to quota. Some Federal agencies regulate storage and handling in the United States of certain types of merchandise, such as explosives. Depending on the nature of the requirements and the particular characteristic
