What does National III refer to in vehicles?

[Steve]

National III vehicles refer to: automobiles that comply with the National III emission standards. The so-called National III standard is China's third-stage vehicle emission standard. Below is relevant information about the National III standard:1. Clean and environmentally friendly: It can significantly reduce the emission of pollutants from individual vehicles, with the total emission of pollutants being about 40% less than vehicles meeting the "National II standard."2. New system: Equipped with an On-Board Diagnostics (OBD) system, thus individual vehicle emissions are lower, and the impact on the atmospheric environment is smaller.3. Scope of application: The National III standard mainly applies to light gasoline and diesel vehicles under 3.5 tons, equivalent to the Euro III standard.