Vehicle registration plates of Bulgaria

The standard Bulgarian license plate consists of a blue vertical strip (the European strip) on the left side of the plate containing the flag of Bulgaria and the country code of Bulgaria (BG), always followed on a white surface, using black font, by the one- or two-letter province code, four numerals and a final one- or two-letter code, called a "series".
They thus take the form X(X) NNNNY or X(X) NNNNYY. The one-letter 'series' appears primarily on mopeds and motorcycles, but also on some other older vehicles. All vehicular trailers (whether goods/agricultural trailers or caravans, etc) have E as the first letter of the 'series' suffix, ie CA 1234EX.

The format XX AAAAAA may be used instead the standard one, where A represents either letters or numbers chosen by the owner (a name for example). The price of such a custom plate is €3,500 (BGN7,000), so these are rare.

*1969 - Former series of X-Y-NNNN and XX-Y-NNNN no longer valid.

*1985 - System extended with a second serial letter in Sofia, eg CA0001AA.

*1986 - Jan 1986: a new series on new style yellow plates introduced, with previous-stlye plates no longer valid.

*1992 - Since 1992, the letter license plate code used letters common to both the Latin and Cyrillic alphabets, no matter whether they have the same phonetic value (as per ). This new 1992 series used a white background, and all former yellow background plates became invalid.

*1993 - The hyphens/stops between letter and number blocks were also phased out and also became invalid in 1993.

*2000-2006 - The left-hand blue band Bulgaria flag was phased in, eventually becoming a legal requirement on 1 Jul 2006.

*2007 - On the 1st Jan 2007 Bulgaria (BG) and Romania (RO) joined the European Union, and the standardised Europlate was expected to be introduced soon after.

In use are also three other types of plates: NNN T NNN — plate for transit of unregistered vehicle through Bulgaria; NNN H NNN — plate for a new vehicle, not registered yet; NNN B NNN — temporary plate for car dealers. These three types use a white background with black text and a red vertical strip on the right side. Usually, the expiry date is inscribed on the red strip.

Since 2006, all military vehicles' plates are subject to change with the new ones: the letters "BA" (for Bulgarian Army) and 6 digits — the form is BA NNNNNN. The same form is adopted for the new license plates of the Civil Protection Service of Bulgaria, beginning with "CP" (for Civil Protection) followed by 6 digits — CP NNNNNN. On the left side of both kinds of plates there's a blue vertical strip, same as the one described above.

License plate codes

Foreigner and temporary plates

Finally, cars belonging to foreigners and imported into Bulgaria for a limited period of time are blue with white characters, starting with "XX", followed by four (meaningless) digits and two small digits denoting the expiry year.