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

[BrandonDella]

A white license plate starting with 'sd' represents vehicles belonging to the Equipment Department of the Shenyang Military Region. White license plates are commonly seen on vehicles used by public security departments, judicial departments, procuratorates, as well as the armed police and the People's Liberation Army, which are state power institutions. Generally, the letter 'A' stands for courts, 'B' for procuratorates, 'C' for the Ministry of State Security, and 'D' for judicial courts. The colors of domestic vehicle license plates in China include: 1. Blue: Vehicles with blue plates are mostly sedans or small-tonnage trucks, which are the most common type of license plates; 2. Yellow: Vehicles with yellow plates are mostly large trucks, trailers, etc., and some family cars exceeding six meters in length also require yellow plates; 3. Black: Vehicles with black plates mostly belong to consulates, and the YueZ plates issued in Guangdong are also black; 4. Green plates: Vehicles with green plates are new energy vehicles, with small new energy vehicles having gradient green plates and large new energy vehicles having yellow-green dual-color plates.