When did China IV start to be implemented?
2 Answers
China IV standard was implemented from 2012. The following is a related introduction about China IV: 1. Introduction: China IV emission standard is the national fourth-stage motor vehicle pollutant emission standard. The main pollutants emitted by automobiles include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), PM (particulate matter), etc. Through the application of technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, the standard controls and reduces automobile emissions to below specified values. 2. Function: To control and reduce automobile emission pollutants.
As an ordinary driver, I remember the National IV emission standard was implemented on July 1, 2011. I had just bought a new car at that time, and the salesperson mentioned it, saying it was a new regulation introduced by the government to reduce exhaust pollution, replacing the old National III standard. The impact was significant—some older cars could no longer directly enter cities, and new cars had to meet this standard to be sold. I had to spend a bit more when buying my car, but thinking the air would improve made it worthwhile. Looking back now, that summer was quite hot, and the exhaust from new cars on the streets noticeably had less smoky smell. People also started paying more attention to emission issues while driving, gradually making it a habit. Anyway, since that year, the automotive market has changed a lot, with many manufacturers updating their technologies.
