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When will China 6 be implemented?

4 Answers
DePeter
07/28/25 5:19pm
China 6 is divided into two standards, and the implementation times for each are as follows: 1. China 6a: On July 1, 2020, light-duty vehicles will be required to comply with the China 6a emission standard. 2. China 6b: On July 1, 2023, light-duty vehicles will be required to comply with the China 6b emission standard. Below is an introduction to China 5 and China 6: 1. Meaning: The higher the number, the more environmentally friendly the vehicle's emissions are, and the later the standard is issued, the stricter the vehicle's energy-saving and emission-reduction requirements are. 2. Pollution: China 1 has the highest pollution level, while China 6 has the lowest, generally categorized by year. 3. Engine: The biggest difference between China 5 and China 6 vehicles is that China 6 vehicles use a more efficient three-way catalytic converter, allowing the engine's emissions to meet the China 6 standard. 4. Upgraded version: The China 6 emission standard is an upgraded version of the current China 5 emission standard. It imposes stricter and more scientific requirements on vehicle tailpipe emissions.
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StLiam
08/11/25 9:28pm
China's National VI emission standards actually came into effect on July 1, 2019, initially with some regions implementing the transitional National VIa phase. On July 1, 2020, major cities like Beijing and Shanghai prioritized switching to the stricter National VIb standards. By July 1, 2023, all newly produced and sold gasoline vehicles nationwide were required to comply with National VIb regulations. From my experience in vehicle maintenance, this phased implementation was designed to give manufacturers buffer time to upgrade technologies and reduce exhaust pollution. Car buyers should verify the emission label shows National VIb to avoid future urban driving restrictions; meanwhile, National V vehicles often saw discounted clearance sales during the transition. Overall, these standards have significantly contributed to China's air quality improvement, with new vehicles now having far superior emission control compared to older models.
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Alessandra
09/29/25 8:38am
When I changed my car last year, I researched the China 6 implementation timeline. I remember that China 6a was piloted in some regions starting July 2019, followed by China 6b being enforced in many first-tier cities from July 2020. By July 2023, all new vehicles sold nationwide were mandated to meet China 6b standards. I often discussed this in car enthusiast circles, where many dealerships offered huge discounts on China 5 vehicles at that time - I secured substantial savings when purchasing my car. If you're car shopping now, I recommend checking the vehicle emission certificate to ensure compliance with the latest China 6b standards, avoiding future restrictions. I've also noticed that while China 6 vehicles are slightly more expensive, they're more fuel-efficient and emit less pollutants, resulting in lower long-term ownership costs. This makes a significant difference in daily driving - you get both eco-friendliness and peace of mind behind the wheel.
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LaRachel
11/13/25 3:45am
The China VI emission standard was initially implemented in some cities with the China VIa phase starting around July 2019, followed by the expanded rollout of China VIb in July 2020. From July 2023 onwards, all newly sold vehicles nationwide are mandated to comply with the China VIb standard. As someone who commutes by car daily, I've noticed this change has accelerated vehicle upgrades. Nowadays, most available vehicles meet these standards, offering lower emissions and better fuel efficiency, making them quite suitable for urban commuting. It's worth noting that implementation timelines varied across regions during the policy rollout, so it's advisable to consult dealers before purchasing to avoid any misunderstandings.
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