Vehicle registration plates of Bulgaria Vehicle registration plates of Bulgaria Standard Bulgarian vehicle registration plates display black glyphs (alphanumeric characters) on a white background, together with – on the left-hand side of the plate – a blue vertical "EU strip" showing the flag of Europe (or, for older-registered cars, the flag of Bulgaria) and, below it, the country code for Bulgaria: BG. The characters displayed in the main field of the plate are: The format is thus XX NNNN YY, where XX (or X) is the province code, NNNN is the serial number, and YY is the series. Since 1992, only glyphs that are common
Vehicle registration plates of Serbia Vehicle registration plates of Serbia Vehicle registration plates of Serbia are issued using a two-letter region code, followed by three or four-digit numeric and a two-letter alpha license code, separated by a hyphen (e.g., BG 123-AA or BG 1233-AA). The regional code and the license code are separated by the Serbian shield and a Cyrillic letter combination for the region below. A blue field is placed along the left side edge, as in European Union countries, bearing the ISO 3166-1 alpha-3 country code for Serbia (SRB). License numeric code contains combination of three digits (0-9), while two letter alpha code