Codes used in several countries
EU on a licence plate
EU is an area code in 3 countries. The plate's style and country code tell them apart.
Austria
EU 123ABCode details →Eisenstadt-Umgebung (Burgenland)
Germany
EU-AB 1234Code details →Euskirchen (North Rhine-Westphalia)
United Kingdom
EU51 ABCCode details →Chelmsford (Essex)