What is the emission standard for cars produced in 2014?

[RafaelRose]

For cars produced in 2014, both China IV and China V emission standards may apply. You can check the environmental protection label located at the top right corner of the vehicle's windshield, which indicates the emission standard of the car. Relevant information is as follows: 1. The main pollutants emitted by automobiles include carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and particulate matter (PM). The sources of automobile pollutants come from the exhaust pipe, crankshaft case, and fuel system. 2. The China IV emission standard is the fourth stage national standard for motor vehicle pollutant emissions. The main pollutants emitted by automobiles include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), PM (particulate matter), etc. Technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices are applied to meet this standard.