Can China IV Vehicles Be Phased Out by July 2021?

[DiAngelo]

China IV vehicles cannot be phased out by July 2021 due to their substantial market presence, which requires a certain period for complete elimination. Below are relevant details regarding China IV vehicles: 1. Interpretation of National Policies: From a policy perspective, the phase-out of yellow-label vehicles was not implemented abruptly. Initial measures included restricting urban access before gradual transition. Given that China III and China IV vehicles currently account for approximately 80% of the market share, while China I and China II models represent only about 10%, it is estimated that 4-5 more years will be needed for full phase-out. 2. China IV Emission Standards: The China IV emission standard represents the fourth-stage national standard for motor vehicle pollutant emissions. Primary automotive pollutants include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), and PM (particulate matter). These emissions are controlled and reduced to mandated levels through technologies such as advanced catalytic converter active layers, secondary air injection systems, and exhaust gas recirculation systems equipped with cooling devices.