What is the National Emission Standard for VI Vehicles?

2 Answers
DeElena
07/24/25 5:03am
"National VI" refers to vehicles compliant with the National VI emission standard. Below is a partial introduction to the National VI standard: 1. National VI is the "China 6 Motor Vehicle Pollutant Emission Standard," which includes emission limits and measurement methods for light-duty vehicles and emission limits for heavy-duty diesel vehicles. 2. Currently, the National VI standard is divided into two phases: "National VIa" and "National VIb," with plans to implement them nationwide uniformly in 2020 and 2023, respectively. 3. The National VI standard, or the "China 6 Motor Vehicle Pollutant Emission Standard," was established to enforce environmental protection laws, reduce and prevent vehicle exhaust pollution, protect the ecological environment, and ensure human health.
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GemmaAnn
08/11/25 12:43am
Recently, many people have been asking me during my commute, 'What is the emission standard of VI vehicles?' Actually, it refers to the China VI standard, because the Roman numeral VI stands for six, equivalent to China VI. After I switched to a China VI car myself, I really noticed less exhaust pollution, a quieter ride, and slightly better fuel efficiency. The China VI standard is divided into Phase A and Phase B, with Phase B being stricter. Nowadays, most new cars meet this standard, and you can confirm it by checking the environmental label or the vehicle manual when buying a car. This standard has been in effect since 2020, aiming to reduce smog and protect the environment. Choosing a China VI car is beneficial for both health and the environment, and it can also help avoid high environmental taxes and fees. I recommend prioritizing this standard when purchasing a car.
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