On September 14, three days after the terrorist attacks, the U.S. Customs Office notified NBAA that the General Aviation Telephonic Entry (GATE) program was closed. GATE allowed approved pilots and passengers flying from Canada to the U.S. to give customs advance notice by calling a toll-free number and obtaining a telephonic entry number.
Previously, authorized aircraft could fly directly to the approved U.S. airport of entry (frequently the aircraft’s home field) and avoid long delays for customs inspections. In most cases, no inspection was required.
Until further notice, all flights entering the U.S. from the Canadian border must stop and be inspected by the U.S. Customs Service at a designated border inspection port of entry. NBAA said that Southern Border Overflight Exemptions will still be allowed, but that is subject to re-evaluation.