What does a blue license plate mean?

[AveryLynn]

Blue license plates refer to the license plates for small vehicles. Here is some related extended information: 1. Blue plates: Small vehicle license plates, featuring white characters and borders on a blue background. These plates are installed on trucks with a total weight below 4,500 kg (excluding), vehicles with a passenger capacity (excluding the driver) below 20 people, and vehicles with a body length below 6,000 mm (excluding). 2. Yellow plates: Large vehicle license plates, featuring black characters on a yellow background. These are used for trucks weighing over 2 tons, buses (including vans with 10 or more seats), most commercial vehicles, and motorcycles.