Preclearance refers to the process by which a country's border control, customs, and immigration procedures are carried out at an international airport or other departure location outside of the country whose procedures are being implemented. This allows passengers on flights departing from that location to clear all necessary checks before boarding the plane, effectively treating the departure location as if it were within the territory of the country conducting the checks.

For example, the United States has preclearance facilities in several countries, where travelers can go through U.S. immigration, customs, and agricultural inspections before they board their flight to the U.S. This means that upon arrival in the U.S., they are treated as domestic passengers, which can significantly reduce wait times and streamline the arrival process.

read more >>

Preclearance is defined as the process of seeking U.S. Department of Justice approval for all changes related to voting.read more >>