When was the China 6 emission standard implemented?

[VanAbigail]

China 6 emission standard is implemented in two phases. From July 1, 2020, the China 6A standard was implemented. From July 1, 2023, the China 6B standard was implemented. The following is the significance of the implementation of the China 6 emission standard: 1. International competitiveness: From originally following the European and American motor vehicle emission standards to being independent and innovative. For the first time, it has led the world in standard setting, which helps Chinese automobile companies participate in international market competition and improves the international competitiveness of China's automobile industry. 2. Industrial upgrading: Under the background of China's overcapacity in the automobile industry, it can play a role in eliminating backward production capacity and leading industrial upgrading. 3. Environment: It can meet the requirements of key regions to tighten automobile emission standards in order to accelerate the improvement of ambient air quality.

[Bridget]

I remember the China VI emission standards quite clearly, as they almost affected my car replacement plan. The nationwide implementation was divided into two phases: China VIa officially took effect in July 2020, while China VIb wasn't fully implemented until July 2023. However, some major cities like Shenzhen and Guangzhou took early action, enforcing the standards as early as 2019. When I was car shopping at the dealership, the salesperson specifically reminded me that new vehicles must be equipped with particulate filters, with exhaust emissions limited to no more than 500mg of carbon monoxide per kilometer. The new standards are so strict that many automakers had to modify their engines overnight. I heard the clearance sales of non-compliant inventory vehicles were quite a spectacle.

[DeVictoria]

Our family happened to change cars during the policy transition period last year. A friend at the vehicle management office mentioned that the nationwide deadline for implementing China 6b standards was July 2023 at the latest, but progress varied across provinces. Major cities with license plate restrictions like Beijing, Shanghai, Guangzhou, and Shenzhen took the lead, starting as early as 2019. The inspection station technician explained that the new standards are 50% stricter than China 5, with nitrogen oxide emissions required to drop by over 40%. Nowadays, vehicle inspections are extremely thorough - OBD scanners check data streams via the onboard computer while exhaust gas analyzers monitor tailpipe emissions. Even a 0.1 milligram deviation will result in failed annual inspection.

[LaMalachi]

China's National VI emission standards are divided into two phases: a and b. The basic version, National VI a, was rolled out nationwide in July 2020, while the upgraded National VI b has a final deadline of July 2023. Last year, when I accompanied a friend to buy a pickup truck, I learned that diesel vehicle standards are even stricter, with nitrogen oxide limits compressed to 35 milligrams. A friend working in environmental protection mentioned that the new regulations even target fuel evaporation, with monitoring sensors added to the pipelines from fuel tanks to carbon canisters. After the policy implementation, the market underwent significant reshuffling, with parallel-import vehicles plummeting by 70%, while new energy vehicles seized the opportunity to rise.