When is the implementation time of China 6?

[RicardoDella]

The China 6 standard was implemented starting in 2020 and is divided into two phases: Phase 1, from July 1, 2020. Phase 2, from July 1, 2023, all vehicles sold and registered must comply with the China 6B standard. Below is relevant information: 1. The China 6a phase limits are slightly stricter than the European Euro 6 emission standard limits and more lenient than the U.S. Tier 3 emission standard requirements. The China 6b phase limits are roughly equivalent to the 2020 fleet average limits specified in the U.S. Tier 3 emission standards. Considering differences in testing procedures, as well as the introduction of RDE regulations and PN limits, it can be said that the China 6 standard is one of the strictest emission standards in the world today. 2. To implement the "Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution," strictly enforce the national "Limits and Measurement Methods for Emissions from Light-Duty Vehicles (China 6 Standard)" (GB18352.6-2016) and "Limits and Measurement Methods for Emissions from Heavy-Duty Vehicles (China 6)" (GB17691-2018), and in accordance with the requirements of the former Ministry of Environmental Protection's "Announcement on the Disclosure of Environmental Protection Information for Motor Vehicles and Non-Road Mobile Machinery" (Guo Huan Gui Da Qi [2016] No. 3), relevant enterprises are required to publicly disclose the environmental protection information (including emission testing and pollution control technology information) of their produced or imported vehicles (machinery) that meet the emission standards on the motor vehicle and non-road mobile machinery information disclosure platform.

[McValerie]

I remember the implementation of the China VI emission standards had a significant impact on us ordinary car owners. Specifically, the national regulation stipulated that the China VIa phase officially took effect in key cities from July 1, 2020, primarily aimed at reducing exhaust pollution. Then, the China VIb phase, which is much stricter, was rolled out nationwide on July 1, 2021, requiring all new vehicles to comply with this standard. When I bought my car, I specifically chose a China VI-compliant model, and it felt totally worth it—the car runs more fuel-efficiently and environmentally friendly, with much fewer harmful substances like nitrogen oxides in the exhaust. This means I can easily drive through urban restricted zones without worrying about fines. In the long run, it also benefits maintenance and resale value, as the technological upgrades make the engine and catalytic converter more efficient. Although the new cars are slightly more expensive, it’s worth it. Overall, the policy push is a good thing. I often discuss this with fellow car enthusiasts, as it helps make the air cleaner.

[VanessaLee]

As someone who cares about the environment, I'm quite pleased with the implementation of China 6 emission standards. It's rolled out in two phases: China 6a took effect on July 1, 2020, restricting emissions from new vehicles in major cities, followed by China 6b nationwide on July 1, 2021, requiring all newly manufactured and sold vehicles to meet the standards. The policy aims to reduce PM2.5 and harmful gases, making the air cleaner. I've seen data showing it can cut pollutant particles by up to 70%! For our daily driving, it's also greener—optimized powertrains result in lower noise and slightly reduced fuel consumption. Looking back to the China 5 era, emission controls weren't as strict. Today's vehicles are more advanced, and I encourage everyone to support such changes to protect Earth's resources. In the long run, automotive industry upgrades drive technological innovation. I believe every car owner should check whether their vehicle complies with these standards.

[SarahMarie]

From a technical perspective, the implementation timeline of China VI emission standards is quite clear. China VIa was first rolled out in pilot cities starting July 1, 2020, primarily targeting emission restrictions for light-duty vehicles. The more stringent China VIb standard was then enforced nationwide from July 1, 2021. The upgraded emission standards necessitated improvements in engine and exhaust system designs, such as lowering nitrogen oxide limits. Having worked with many China VI-compliant vehicles, I've noticed higher maintenance requirements—regular checks of the OBD system and three-way catalytic converter are essential to avoid triggering warning lights. The phased implementation allowed manufacturers to gradually introduce compliant models while giving consumers time to adapt to new testing procedures. Although initial costs are higher, the long-term benefits for environmental protection and vehicle performance are significant. I recommend checking your manual to confirm compliance.