In which year did China IV emission standards begin?
2 Answers
China IV emission standards began in 2011. Below is relevant information about the China IV standards: 1. Vehicles produced between 2011 and 2017 comply with China IV standards, which require approximately 50% lower emissions of various pollutants compared to China III standards. 2. The main pollutants regulated by China IV standards include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), and PM (particulate matter). These standards are achieved through technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices, ensuring that vehicle emissions are controlled and reduced below specified limits. 3. The pollutant emission limits under China IV standards will be further reduced by 60%. To ensure vehicles maintain stable compliance with emission limits during use and guarantee the durability of emission control performance, additional requirements are imposed for On-Board Diagnostics (OBD) systems and in-use vehicle compliance.
I remember the China IV emission standards came into effect in 2010. As an ordinary person who enjoys studying automotive technology, I pay close attention to such policy changes. July 1, 2010, marked the nationwide mandatory implementation, primarily targeting new vehicle production, requiring significant reductions in vehicle exhaust emissions, especially nitrogen oxides and particulate matter. The policy background was the heightened environmental awareness after the Beijing Olympics, driving upgrades in China's automotive industry. I noticed updates in catalytic converters and engine systems in new cars, making them more efficient to drive with slightly reduced fuel consumption. From that year onward, the used car market saw a clear divide, with China III vehicles depreciating faster. I view this as a positive change that helped improve urban air quality. As a driver, I could feel less haze on the roads. Overall, 2010 marked an important turning point for automotive environmental standards, and future regulations will continue to become stricter.
