Vehicle registration plates of Bulgaria compatible with both the Cyrillic and Latin alphabets came into force: 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
Vehicle registration plates of the Republic of Macedonia which Greek border guards cover the letters "MK" on Macedonian vehicle plates with a sticker, in Greek and English, reading: “Recognized by Greece as FYROM”. Vehicle registration plates of the Republic of Macedonia Macedonian registration plates of vehicle consist of a two-letter region code, followed by a 4-digit numeric (before 2012 was 3-digits) and a 2-letter alpha code (e.g. SK 2345 MG). There is a blue field on the left side with the international country code for Macedonia - MK. License numeric code contains combination of four digits (0-9), while two letter alpha code is made of combination of letters