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
Motor vehicle registration is not a mandatory register. Often some proof of entitlement or ownership is required to register a car. A "Certificate of Vehicle Registration" or similar is issued by the state or territory agency, this document can be used as a secondary identity document of the operator. Along with the certificate, the agency also issues vehicle registration number plates. The registration lasts generally for a maximum of a year, after which time the vehicle registration must be renewed. The registration certificate notes the model, make, year, shape, VIN Chasis number and Engine number, weights, engine capacity and number of passengers. A