What does the military vehicle license plate 'sd' mean?

[OMelanie]

The military vehicle license plate with 'sd' belongs to the former General Armament Department of Shenyang Military Region. As a symbol of military vehicles, the military vehicle license plate is issued by the transportation department after reviewing, inspecting, and registering the vehicle applying for the plate. It serves as proof of the special rights granted by the state for the operation of military vehicles. Currently, the entire military uses the 2012-style military vehicle license plates. Content Extension: 1. The first letter 'A' represents the four headquarters of the Central Military Commission and military units directly under the military region level. 'K' stands for the Air Force, 'H' for the Navy, 'B' for the former Beijing Military Region, 'S' for the former Shenyang Military Region, 'L' for the former Lanzhou Military Region, 'J' for the former Jinan Military Region, 'N' for the former Nanjing Military Region, 'G' for the former Guangzhou Military Region, and 'C' for the former Chengdu Military Region. The second letter 'A' represents the Central Military Commission and the General Staff Department, 'B' for the General Political Department, 'C' for the General Logistics Department, 'D' for the General Armament Department, 'E' for the Academy of Military Science, 'F' for the National Defense University, 'G' for the National University of Defense Technology, 'T' for the Third Department of the General Staff, and 'V' for the Second Artillery Corps Headquarters. 2. Compared to ordinary license plates, military vehicle license plates differ not only in color, style, and letter numbering but also in privileges. Military vehicles are exempt from any road tolls, maintenance fees, and parking fees within mainland China. During military missions, they are not subject to traffic regulations or control by traffic authorities and enjoy priority road access. In case of general traffic violations, they will be handled internally by the military.

[KingAnn]

I've had quite a few dealings with the military. Military vehicle license plates starting with SD refer to the Shenyang Military Region Joint Logistics Department. The second letter in such plates indicates specific departments, with 'S' being the code for Shenyang Military Region. The Joint Logistics Department is primarily responsible for logistical support tasks like transportation and fuel supply. Most military trucks with SD plates you see on the road are transporting supplies. The current Northern Theater Command still uses parts of the old license plate system, so many maintenance fleet trucks still bear SD plates. When you see such military vehicles, you should yield the right of way as they often carry out urgent transport missions. However, I must remind everyone that military plates are encrypted and managed under strict regulations – forging them is a criminal offense that can lead to imprisonment.