The kb license plate number represents the Air Force Political Department, and the license plate is white.

License plates are divided into: armed police license plates, temporary agricultural vehicle license plates, agricultural vehicle license plates, temporary entry motorcycle license plates, temporary entry vehicle license plates traveling across regions, and temporary entry vehicle license plates driving within the region. License plates and temporary license plates for special motor vehicles. Air Force license plate number codes are: K stands for Air Force, KA stands for Air Force Command, and KB stands for Air Force Political Department.

National security license plate:

Level 1 security license plate

The license plate has yellow characters on a red background, with the number of the security issuing unit below, usually the Central *** The leading vehicles include members of the Standing Committee of the Political Bureau, the President, Vice President of the State, Chairman of the Standing Committee of the National People's Congress, Premier of the State Council, Chairman of the National Committee of the Chinese People's Political Consultative Conference, Chairman of the Central Military Commission, and Secretary of the Central Commission for Discipline Inspection. The issued number is small. It is a first-level security and has the right to control the passing road sections. Most drivers and passengers are equipped with firearms.