Codes used in several countries
RZ on a licence plate
RZ is an area code in 4 countries. The plate's style and country code tell them apart.
Germany
RZ-AB 1234Code details →Herzogtum Lauenburg (Schleswig-Holstein)
named after Ratzeburg
Norway
RZ 12345Code details →Rogaland
named after Egersund
Poland
RZ 12345Code details →Rzeszów (Subcarpathian)
United Kingdom
RZ51 ABCCode details →Antrim (Northern Ireland)