License plate regulations
The second place of the license plate is English letters: it represents the prefecture-level administrative region where the vehicle account is located, and is the letter code of each (prefecture-level city, region, autonomous prefecture and league).
According to the provincial vehicle management office, it is ranked according to the status of administrative regions at all levels: (the letter "A" is the code of the central city of the provincial capital, capital or municipality directly under the central government, and the following letters are ranked in no particular order).