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When will Henan implement China 6 emission standards?

4 Answers
VonSamantha
09/04/25 6:08am
Starting from July 1, 2019. Here is more information about China 6: 1. Differences between China 5 and China 6: Compared to China 5 standards, China 6 standards are stricter in controlling pollutant emission limits, making them one of the most stringent standards globally. 2. Differences between China 6 "a" and "b": According to the "Limits and Measurement Methods for Emissions from Light-duty Vehicles (China 6)" issued by the Ministry of Ecology and Environment, the China 6 standards for light vehicles are implemented in phases, with two emission limit schemes, China 6a and China 6b, implemented in 2020 and 2023 respectively. The emission standards for China 6a are basically the same as China 5, only taking the strictest values from China 5 emission requirements. China 6a is essentially a transitional phase from China 5 to China 6, while China 6b represents the true China 6 emission standards.
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DiConnor
09/16/25 7:02am
I remember the China VI emission standards were officially implemented in Henan on July 1, 2019, and the entire car market was buzzing with activity at that time. I happened to be planning to change my car then and visited seven or eight 4S stores, finding many China V vehicles being cleared from inventory at discounted prices. I almost impulsively bought a Highlander. My advice is to pay special attention to the manufacturing date when buying a used car. Although China V cars are cheaper, they might cause more trouble during future inspections. Now, all new cars in Henan comply with China VI standards, but be aware that there are two phases: China VI a and China VI b. When buying a used car, you can ask the seller to show the environmental compliance list to confirm the standard level. My neighbor bought a China V CR-V last year and had trouble passing the emission test during the inspection last month—it almost failed.
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Tami
10/30/25 7:37am
The implementation started in the summer of 2019, specifically on July 1st. A colleague of mine who worked at an automobile factory at the time mentioned that the production line had been modifying equipment six months in advance. Nowadays, most new cars running on Henan roads are compliant with the China VI standard, which has indeed had a significant impact on older vehicles. My 2017 Buick, for instance, is a China V model, and it requires extra effort during each inspection. If you're planning to buy a car recently, I'd suggest opting directly for a China VIb compliant vehicle. Although it might be a bit more expensive, it will be easier to sell in the future. My brother-in-law bought a China V stock car last year to save some money, and this year when he tried to trade it in, the dealer lowballed him by 8,000 yuan—a huge loss.
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LouisDella
12/13/25 7:45am
Implemented on July 1st, it's been over three years now. I remember it particularly clearly because the used car market suddenly saw an influx of cheap vehicles after the policy was introduced. Currently, new cars in Henan must meet the China VI emission standards to be registered. However, it's important to note that China V vehicles registered before July 2019 can still be driven normally. Recently, while accompanying a friend to look at cars, I noticed an interesting phenomenon: the China VI version of the same car model is about 50 kg heavier than the older version. The salesperson mentioned it was due to the addition of upgraded three-way catalytic converters. For friends considering new energy vehicles, it's advisable to pay attention to changes in range. After the implementation of the China VI standards, the full-charge range of plug-in hybrid vehicles has generally increased by about 10%.
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