Is Euro IV OBD equivalent to China IV?

[VonAva]

Euro IV OBD is equivalent to China IV emission standards, which are based on Euro 3 and Euro 4 vehicle emission standards. Compared to China II, China III further reduces the limits for pollutant emissions. The exhaust pollutant emission limits of China III standards are 30% lower than those of China II standards, while China IV standards further reduce them by 60%. China IV emission standards represent the fourth stage of national motor vehicle pollutant emission standards in China. The main pollutants emitted by vehicles include hydrocarbons, nitrogen oxides, carbon monoxide, and particulate matter. Through the application of technologies such as the active layer of catalytic converters, secondary air injection, and exhaust gas recirculation systems with cooling devices, these standards control and reduce vehicle emissions to below specified levels.