Border control is the implementation of border controls on travel between Svalbard, which maintains a policy of free migration as a result of the Svalbard Treaty (Norwegian: Svalbard-traktaten; ) and the Schengen Area, which includes the rest of Norway. The Kingdom of Denmark also maintains a complex system of subnational countries with autonomous customs policies, since they aren’t within the European Union like the Danish mainland. These are Greenland () and the Faroe Islands (). These areas do not maintain strict immigration controls with the Schengen Area, but border controls are sporadically enforced for customs purposes. Other examples of effective internal border
Greenland Representation to the European Union withdrawal. Between 1982 and 1984 the terms were negotiated and on February 1, 1985 Greenland formally withdrew from the European Community. A Treaty on Greenland’s withdrawal from the Community was made – the Greenland Treaty – declaring Greenland as a “special case”. This "special case" provided a fisheries agreement between the parties in which the European Community and later the European Union kept its fishing rights and Greenland kept its financial contribution as before the withdrawal. It also gave Greenland tariff free access of fisheries products to the EU as long as there exists a satisfactory fisheries agreement. Greenland is