What is the arrangement basis for Lu A and Lu B license plates?

[LeMila]

A represents the provincial capital, while B and subsequent letters are determined based on the city's GDP. Below is an introduction to license plate numbers: 1. Overview: A license plate number is an identifier for a vehicle, similar to how an ID number identifies a person. For example, a license plate from Guangzhou City, Guangdong Province would have 'Yue' representing Guangdong Province and 'A' representing Guangzhou City, making 'Yue A' the license plate code for Guangzhou. 2. Motor Vehicle Registration Authority Code: The motor vehicle registration authority code consists of 2 characters, combining a Chinese character and an English letter. The Chinese character is the abbreviation of the province, autonomous region, or municipality directly under the central government, and the English letter is the code of the vehicle management office. 'Lu' is the Chinese character abbreviation for Shandong Province, 'A' is the code for the Jinan City Vehicle Management Office, and other letters follow this pattern.