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When will China VI emission standards be implemented?

3 Answers
LeMary
07/25/25 1:11am
China VI emission standards will be implemented in two phases: "China VI A" and "China VI B", with corresponding implementation dates of July 1, 2020 and July 1, 2023. Here is an introduction to China VI standards: 1. Overview: The China VI motor vehicle pollutant emission standards are established to implement the Environmental Protection Law of the People's Republic of China and the Air Pollution Prevention and Control Law of the People's Republic of China, aiming to prevent environmental pollution caused by exhaust emissions from compression-ignition and gas-fueled ignition engine vehicles, protect the ecological environment, and safeguard human health. 2. Content: The standards consist of two parts: "Limits and Measurement Methods for Emissions from Light-duty Vehicles (China VI)" and "Limits and Measurement Methods for Emissions from Heavy-duty Diesel Vehicles (China VI)".
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OOlive
08/11/25 11:12am
I remember the implementation timeline of China 6 emission standards was quite deliberate. China 6a was first rolled out in key cities like Beijing and Shanghai around July 2019, then expanded nationwide by July 2020. I happened to be changing cars at that time, and there were many China 5 vehicles being cleared from inventory at significantly discounted prices. China 6b was originally planned for earlier implementation but got delayed, finally becoming mandatory nationwide in July 2023. This had a major impact on new car buyers - you had to carefully check emission standards when purchasing to avoid policy-related issues. As someone who's been driving for over a decade, I think these standards are gradually improving air quality, but they've also made used car transactions more complicated since older vehicles depreciate faster. Looking back, understanding these timelines in advance could have saved a lot of trouble.
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PrestonMarie
09/26/25 8:24am
From an environmental perspective, the implementation of China 6 emission standards has been well-planned. The China 6a standard was first piloted in July 2019 in regions like Beijing-Tianjin-Hebei and the Yangtze River Delta to reduce smog, and was fully rolled out by July 2020. As an environmentally conscious individual, I strongly support this gradual approach as it effectively reduces harmful substances in vehicle emissions. The more stringent China 6b standard became mandatory nationwide from July 2023, further curbing pollutant emissions. These policies encourage automakers to upgrade their technologies, benefiting public health and the environment in the long run, such as reducing respiratory diseases. However, during the transition period, some manufacturers faced production pressures, leading to temporary supply shortages. It's advisable to check emission labels before purchasing a vehicle.
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