How are the license plate letters abcdef arranged?

[HeidiLee]

The letters abcdef on license plates represent the first-level administrative division codes. The letter 'a' is reserved for provincial capital cities, while the remaining letters are allocated to other prefecture-level cities. The allocation methods vary: some provinces assign letters based on the economic output of each prefecture-level city, while others follow the administrative division sequence. License plate numbering rules: 1. The license plate number consists of 6 characters, which can be Arabic numerals (0-9) or a combination of Arabic numerals and English letters (A-Z); 2. For car license plates, the motor vehicle registration authority code is positioned at the top center of the plate with Chinese characters and English letters arranged horizontally. For motorcycle license plates, the code is located on the left side with characters arranged vertically.