What is the specific implementation time of China VI emission standards?

[StKai]

Nationwide, China VIa will be implemented from July 1, 2020, and China VIb will be implemented from July 1, 2023. The following are the specific details of the China VI implementation: 1. Currently, multiple provinces and cities have announced the early implementation of China VI emission standards (among them, Shanghai, Guangzhou, Shenzhen, and Tianjin will directly implement the stricter China VIb standard from July 1, 2019, while Beijing will directly implement China VIb from July 1, 2020). 2. After July 1, 2019, mainstream markets (accounting for 65%-70% of China VI regions) will only be able to sell "China VI" models.

[StFinley]

I remember the China VI emission standards were implemented in two phases. The nationwide China VIa for light-duty vehicles started on July 1, 2020, and my SUV purchase just caught that wave. Last year on July 1, it was upgraded to the stricter China VIb, which is now the standard for all new cars. However, major cities like Beijing and Shanghai were more proactive, implementing it ahead of schedule in 2019. Car manufacturers have really gone all out to meet the standards. A friend who owns a repair shop mentioned that the catalytic converters in new cars are much more complex now. For those considering buying used cars, I'd advise paying special attention to the emission labels to avoid purchasing older models that don't meet the current standards.

[EmilioMarie]

Friends who pay attention to environmental policies should know that China 6 is divided into two levels, a and b. The nationwide China 6a standard for light-duty vehicles was mandatorily implemented in July 2020, and after a three-year transition period, it was fully switched to China 6b in July 2023. The strictest b standard has led to significant upgrades in the exhaust treatment systems of new vehicles. My cousin who runs a repair shop says there are noticeably fewer cars failing emissions tests now. Different regions have different implementation timelines. For example, cities like Guangzhou and Shenzhen implemented it ahead of schedule in 2019, while central and western regions were given more transition time.

[MacLeo]

After studying the emission standards, I found that the implementation timeline of China 6 varies across regions. At the basic level, China 6a was rolled out nationwide on July 1, 2020, with an upgrade to China 6b by July 2023. However, key regions like Beijing-Tianjin-Hebei and Yangtze River Delta took early action back in 2019. I remember many 4S stores were clearing China 5 vehicle inventories at that time. The phased policy implementation is quite reasonable - it controls pollution while giving automakers adjustment time. Nowadays, if a vehicle fails the annual emission test, it's usually due to oxygen sensor or catalytic converter issues.