A.R.S. § 44-6501

The state of Arizona and any county, city or town within the state or a public or private corporation or any combination thereof may apply to the foreign trade zones board, United States department of commerce, for the right to establish, operate and maintain a foreign trade zone and subzones and may acquire land for the purposes of this section. For the purposes of this section, such foreign trade zone or subzone may be incorporated outside the boundaries of a municipality or be made up of areas from adjoining counties.