What types of vehicles are referred to as 'two passengers'?

[Mike]

Two passengers and one hazard refers to chartered vehicles engaged in tourism, class III or higher scheduled passenger coaches, and road-specialized vehicles transporting hazardous chemicals, fireworks, and civil explosives. Vehicles in the 'two passengers and one hazard' category are key focal points in traffic safety. During long-distance driving, they are required to be equipped with satellite positioning devices. Example: Starting from November 2012, all 'two passengers and one hazard' vehicles registered within Jiangxi Province—specifically those engaged in scheduled passenger transport (on class III highways or above), chartered (tourist) passenger transport, and hazardous goods transport—will be equipped with electronic vehicle travel data recorders. These devices will monitor traffic violations such as speeding, overloading, and excessive driving hours in real-time.