There is no border control between Spain and Andorra. As per a treaty signed in 1993, both countries agreed to eliminate border controls and allow free movement of goods, services, and people. This agreement was part of Andorra’s integration into the European Economic Area (EEA). Andorra is not a member of the European Union but enjoys a special relationship with the EU through its participation in the EEA. Therefore, while there is no physical border control, Andorra is considered part of the Schengen Area, which allows for the free movement of people within its member countries. This means that travelers coming from Spain to Andorra or vice versa do not need to present passports or go through formal immigration processes. The absence of border control has greatly facilitated the flow of tourism, commerce, and exchange between the two countries.