EXPLORE FTZ 84 BENEFITS AND IMPLEMENTATION The Foreign Trade Zone (FTZ) of Harris County, Texas, is growing almost as fast as the Greater Houston region. As our population booms, FTZ 84 has seen a huge increase in authorizations as more large importers and exporters learn the financial perks to utilizing FTZ 84. Keep reading to uncover how FTZ 84 can bring serious cost savings to your company.