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Where can a Zone be Located?

Zone sites must be within or adjacent to a U.S. Customs and Border Protection (CBP) port of entry.

The adjacency requirement can be satisfied if one of the following factors is met:

  1. The zone or subzone site is within the limits of a CBP port of entry.
  2. The zone or subzone site is within 60 statute miles of the outer limits of a CBP port of entry.
  3. The zone or subzone site is within 90 minutes' driving time from the outer limits of a CBP port of entry as verified by the CBP Service Port Director.
  4. For subzones only: subzone sites that are outside the 60 miles/90 minutes driving time from the outer limits of the CBP port of entry may alternatively qualify to be considered adjacent if they work with the CBP Port Director to ensure that proper oversight measures are in place.