申根区
Andorra has stayed outside the Schengen Agreement and maintains border controls with the EU. However, as travellers to Andorra have to pass through the Schengen Area, and Andorra does not require or issue any visas, entry requirements are in practice the same as in the Schengen area. Visitors to Andorra who require a visa to enter the Schengen area need a multi-entry Schengen visa, since to leave Andorra they must enter the Schengen area a second time.