Vehicle registration plates of Belarus

Belarusian vehicle registration plates are currently composed of four digits, two letters and another digit (e.g. 1234 AB-5). The first of the letters and the final digit indicate the region of Belarus in which the car was registered. 
Vehicles owned by foreign companies use black-on-yellow plates, and the numbers and letters appear in a different order (e.g. M 1223).
The diplomatic series uses white letters on a red background, also in a different order from standard plates (e.g. CD 1234-5).
History.
Soviet-era registration plates for Belarus carried a pair of two-digit numbers followed by letters in Cyrillic (e.g. 12 34 MББ). Following independence in 1992, the format of Belarusian registration plates became red characters — four digits and two letters on a white background — with the national crest in the centre, separating the digits from the letters
Car registration.
The letters used on Belarusian registration plates today are confined to those appearing in both the Cyrillic and Latin alphabets.
On current Belarusian registration plates, the first letter, as well as the final digit*, indicates where the car was registered: 
In the case of the letters, it is the first letter that indicates the region in which the car was registered, the second being taken from the series A, B, C, E, I, K, M, H, P, O, T, X: