Legal procedures for non-EU students
STUDENTS WITH RESIDENCE PERMIT IN OTHER EU COUNTRY
Non-UE citizens with a valid student permit in other UE country, will need to apply for an Entry Declaration at the National Police Station in 72 hours from the entrance in Spain (if the passport was not stamped by the custom authority) in order to apply for a mobility within UE.
In order to submit application through the Internet, you must obtain an Electronic Signature through this website. After filling out the form one would need to go to the “Oficina de Registro” that would be the closest, or to “Unidad del Archivo General y Registro” in the UAB.
Remember that you won’t be able to make the Electronic Signature if your NIE is expired!