What does a white license plate starting with 'sd' represent?

[AdrianaMarie]

A white license plate starting with 'sd' indicates an official vehicle of the Shenyang Military Region Equipment Department. Most vehicles used by public security departments, judicial departments, procuratorates, armed police forces, and the People's Liberation Army for performing relevant tasks generally have white license plates. Private vehicles are not allowed to use white license plates; otherwise, they will bear corresponding legal liabilities. Here is some relevant information: 1. The first character of a private vehicle license plate is a Chinese character, with different characters representing different provincial-level administrative regions where the vehicle is registered. The second character is an English letter, indicating the prefecture-level administrative region where the vehicle is registered, with the letter 'A' representing the provincial capital. The numbers following the license plate are crucial for distinguishing vehicles. License plate registration requires applying for number selection at the local transportation department. 2. Different license plate colors represent different types of vehicles. Generally, yellow license plates are used for motorcycles, buses, or large trucks, blue license plates are for small cars and minivans, and white license plates are for vehicles equipped by state authorities, such as police cars and military vehicles.

[LillianaMarie]

These white license plates with black characters and a red seal starting with 'SD' are military vehicle plates. Back when I was in the military and served in the logistics department, I drove vehicles with such plates. 'SD' stands for the direct units under the PLA military academy system, such as institutions affiliated with the National Defense University. Vehicles with these plates have special traffic rules when operating in civilian areas, and regular drivers are advised to yield the right of way when encountering them on the road. Here's a lesser-known fact: among these plates, those with the letter 'O' in the fifth position are designated for administrative office vehicles, while those with 'G' are for teaching vehicles. The new-style military plates are even more complex now, with letter combinations that can pinpoint specific units.

[OVivian]

My next-door neighbor is a retired military officer, and he told me that white license plates starting with 'SD' belong to military vehicles. 'SD' represents units directly under the General Armament Department of the PLA. These vehicles use dedicated fueling lanes. Last year, there was a Mengshi off-road vehicle with an 'SD' license plate parked at the entrance of our neighborhood, making daily trips to the military research institute. Actually, identifying military vehicles on the road is quite simple: white background with black characters indicates the PLA, while blue and white stripes signify the Armed Police. The key is to look for the small red square in the middle of the license plate—that’s the anti-counterfeiting chip.

[EvanDella]

During my last visit to the Military Museum, I learned that white license plates starting with 'SD' are exclusively used by military units. The second letter of these plates holds significance: 'S' represents the General Staff Department system, while 'D' stands for the General Logistics Department system. Combined, they signify the direct subordinate organs of the General Armament Department. The SD-plated vehicles I've seen are mostly parked at the entrances of military-industrial enterprises, such as research institutes manufacturing radar equipment. Drivers must hold special driving licenses, and any traffic violations are handled internally by the military system, which is separate from the regular 12123 system.