How many more years can a National IV emission standard vehicle be driven?
1 Answers
As long as the vehicle is in good condition, a National IV vehicle can continue to be driven, but some cities may impose driving restrictions on National IV vehicles. China has clear regulations that do not set a mandatory retirement period for private passenger vehicles, only stipulating "guided retirement" after reaching 600,000 kilometers. Additionally, light trucks and heavy trucks have a mandatory retirement period of 10 years, which can be extended up to 5 years, meaning the maximum mandatory retirement period for National IV trucks is 15 years. The National IV emission standard was implemented in 2011 and lasted until the introduction of the National V standard in 2018. Vehicles produced between 2011 and 2017 generally comply with the National IV standard. The National IV standard requires emissions of various pollutants to be approximately 50% lower than those of the National III standard. The National IV emission standard is China's fourth-stage motor vehicle pollutant emission standard. The main pollutants emitted by vehicles include hydrocarbons, nitrogen oxides, carbon monoxide, and particulate matter. Through the application of technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, vehicle emissions are controlled and reduced to levels below the specified standards.
