
The National 6 emission standard for vehicles will be officially implemented on July 1, 2023. The National 6 standard is divided into two phases, a and b. Starting from July 1, 2019, all light-duty vehicles sold and registered must comply with National 6. The requirements for phases a and b are as follows: 1. Phase a requirement: By July 1, 2023 at the latest, all light-duty vehicles sold and registered must comply with National 6. 2. Phase b limit requirement: This means that National 6a can only be considered a transitional phase, while National 6b is the true National 6 phase. Note: Currently, some regions have implemented the National 6 emission standard ahead of schedule. For example, Guangzhou implemented the National 6 emission standard for light-duty gasoline and diesel vehicles starting from March 1, 2019; Shenzhen required light-duty diesel vehicles to comply with the National 6 standard from July 1, 2018, and light-duty gasoline vehicles to comply with the National 6 standard from July 1, 2019.

I have been following automotive environmental policies. The China 6 emission standards officially implemented nationwide requirements for new light-duty gasoline vehicle registrations on July 1, 2020, marking the beginning of the China 6a phase. On July 1, 2023, the standards were upgraded to the more stringent China 6b. After implementation, emissions dropped significantly—for example, nitrogen oxides and particulate matter were reduced by over 30%. Testing adopted the new WLTC method to simulate real-world driving conditions. Some major cities like Beijing piloted China 6b ahead of schedule in 2019. These standards have driven automakers to innovate engine technologies and also impacted market valuations—when buying a car, it's advisable to check if the production date is after 2020. In the long run, the environmental benefits are significant, representing a key step toward improving air quality.

As a veteran driver with 20 years of experience, the nationwide enforcement of the China 6 emission standard for newly registered vehicles began on July 1, 2020. I remember when I wanted to change cars at that time, I found the market was full of China 6 compliant inventory vehicles. It was implemented in phases, with China 6a coming first, and then upgraded to the stricter China 6b in 2023 for better emission control. Driving a China 6 compliant car, I noticed significantly less exhaust emissions and slightly lower fuel consumption, which is better for urban air quality. Some cities like Shanghai implemented the China 6b standard half a year earlier as a pilot. When choosing a car, it's important to confirm the production date to avoid depreciation issues with older standard vehicles. Dealers often remind me to check the environmental label to understand the vehicle's compliance. With policies updating quickly, it's safer to stay informed about the latest announcements.

I am passionate about environmental protection. The China 6 emission standards were implemented nationwide on July 1, 2020, for newly registered vehicles, marking a significant step in reducing pollution. After the upgrade to China 6b in 2023, emission controls became even stricter, reducing PM2.5 and VOC emissions to protect health. China's policies in response to the climate crisis promote green transportation, similar to the EU's goals. As volunteers, we advocate for purchasing China 6-compliant vehicles to contribute to clean air initiatives, reminding everyone to check compliance when choosing a car. Continuous upgrades in standards are bringing back blue skies to cities, supporting efforts towards sustainable development.

Having sold new cars for ten years, the China 6 emission standards were implemented nationwide on July 1, 2020, requiring new gasoline vehicle registrations to meet the China 6a level. The standard was upgraded to China 6b in 2023. During our training, we emphasized that this date impacts inventory promotion strategies. Customers often ask whether vehicles are compliant. We explain that China 6-compliant cars are more efficient with lower emissions, and some cities implemented the standards a year earlier to promote clearing out older-standard vehicles. We advise consumers to check the manufacturing date (post-2020) and confirm the certification when a new car. Given the significant changes in standards, understanding the policies helps make informed choices and avoid depreciation risks.

Analyzing automotive policies, the China 6 emission standards were implemented nationwide on July 1, 2020, requiring newly registered vehicles to meet the China 6a level. An upgrade to China 6b followed in 2023. Compared to the China 5 standards implemented in 2017, China 6 reduces emission limits by over 50%, significantly improving air quality. The addresses urban smog, with some cities piloting China 6b in 2019, showing remarkable results—studies indicate a 30% reduction in pollution from new vehicles. With China 7 currently under research, it is recommended that consumers stay updated on standard evolution to optimize car purchasing strategies and support environmental progress.


