In order to bring the goods under the regulations of external Community customs transport, you must submit a T1 declaration to Customs. Goods are not cleared as such, but they can be transported from customs depot to customs depot under the supervision of Customs.
A T-document has restricted validity and must be settled in time by means of a subsequent document or be cleared into free circulation by means of clearance, or exported outside the EU again.
Customs refers to external Community customs transport when non-Community goods are transported from one location in the EU to another location in the EU. Even when the transport of non-Community goods does not take place via a non-EU country, Customs will still refer to it as external Community customs transport.