When Did China's National III Emission Standard Start?
2 Answers
China's National III emission standard was officially implemented starting from July 1, 2008, marking the "starting time" of National III. Below are relevant details about the National III standard: 1. Introduction: The National III standard represents China's third-stage vehicle emission standard. Equivalent to Europe's Euro III emission standard, it requires tailpipe pollutant levels to match Euro III specifications, with the key difference being mandatory installation of OBD (On-Board Diagnostics) systems in new vehicles. The OBD system features increased monitoring points and enhanced detection capabilities, including oxygen sensors at both the inlet and outlet of the three-way catalytic converter. Through real-time emission monitoring, it ensures compliance and better enforces Euro III standards. 2. Application Scope: Primarily applicable to light gasoline and diesel vehicles under 3.5 tons (equivalent to Euro III), nationwide implementation began on July 1, 2007. The National III standard introduced significant improvements, notably emphasizing -7°C cold-start emission requirements (unique to China) and implementing OBD systems that automatically alert drivers when emission-related issues occur during vehicle operation, requiring prompt repair at service stations.
I remember the China III emission standard was officially implemented in 2007, the year I started my job and bought a new car, so I paid special attention to this issue. China III is the third stage of China's vehicle emission standards, mainly targeting gasoline and diesel vehicles, requiring reductions in tailpipe pollutants such as carbon monoxide and nitrogen oxides. Compared to the previous China II, it was stricter, making cars more environmentally friendly. I suggest car enthusiasts refer to emission standards when choosing a car, as we are now at China VI, and 2007 was a turning point. Back then, I personally witnessed improvements in urban air quality, but it's important to note that some remote areas delayed implementation until 2008. Overall, it drove technological upgrades but also affected the buying and selling of used cars.
