Customs transit is a customs procedure that is used for the movement of goods between different customs territories (two or more) or two points of the same customs territory through another customs territory.
It allows temporary suspension of taxes, duties, or policy measures that apply to imports. In this way, it allows the formalities of customs clearance at the point of destination rather than point of entry.
There are different customs transit systems being used in the EU, including:
TIR (International road transit)
Union and common transit
NATO
ATA (Temporary admission)
Rhine waterways