If the license plate with black characters on a white background starts with a red WJ character, it is a special license plate for the armed police. Generally, the license plates of civilian vehicles are in black and blue, and the abbreviations of provinces and cities will be attached in front of the numbers and letters, and the second place is the letters, which are generally the codes of the cities where cars are listed in this province.
Test license plate: red letter on white background with the word "test" in front of the number; ?
Temporary license plate: red letter on white background with the word "temporary" in front of the number;