What can be done to merchandise in an FTZ?

Merchandise admitted into a FTZ may be manufactured, processed, stored, exhibited, repacked, assembled, distributed, sorted, graded, cleaned, tested, labeled, repaired and/or mixed with foreign or domestic merchandise. Merchandise may be manufactured or processed while in the zone, substantially lowering the duties paid on merchandise that is entered into the Customs territory. All manufacturing or processing must have prior approval of the Foreign-Trade Zones Board, a division of the U.S. Department of Commerce.