What are the National Emission Standards for Vehicles?

[VonKingston]

Vehicles have: National III, National IV, National V, National VI. The following is an introduction to emission standards: 1. Introduction: Vehicle emission standards refer to the national standards established to limit the emission of harmful gases such as CO (carbon monoxide), HC+NOx (hydrocarbons and nitrogen oxides), and PM (particulates, soot) from vehicle exhaust. 2. Measures: To curb the production of these harmful gases and encourage automobile manufacturers to improve their products to reduce the sources of these harmful gases, both Europe and the United States have established relevant vehicle emission standards. The European standard is the vehicle emission standard that China has adopted, and currently, domestically produced new vehicles will indicate the European standard that their engine exhaust emissions meet. 3. Current Situation: According to Fang Maodong, the chief expert of the China Automotive Technology Research Center, the most significant change in the Euro III emission standard compared to Euro II is that vehicles must be equipped with the core component OBD before leaving the factory.