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How to Distinguish Between National V and National VI Standards for Sedans?

4 Answers
SanCooper
07/24/25 4:11pm

The National V emission standard is marked with the Roman numeral "V", while the National VI emission standard is marked with "Ⅵ". When purchasing a new car, the salesperson will provide a vehicle acceptance form, which includes details such as the model, color, emission standard, engine number, and chassis number. For used cars, you can check whether it meets National V or National VI standards by searching the vehicle's complete model number on the environmental protection website. Here are several methods to determine whether a car meets National V or National VI standards: 1. Check the vehicle's environmental label: The simplest and most direct method is to look at the vehicle's environmental label, which clearly indicates the standard on the back. 2. Query on the Motor Vehicle Management Center website: Visit the Motor Vehicle Exhaust Pollution Supervision and Management Center website to check. 3. Visit the Vehicle Management Office: Bring the vehicle registration certificate (either the original or a copy) to the Vehicle Management Office for inquiry. 4. Check the vehicle's factory certificate: For new cars, you can refer to the vehicle's factory certificate, but generally, this document is kept at the Vehicle Management Office. Therefore, when buying a new car, it is advisable to make a copy for your records. 5. Roughly distinguish based on the vehicle's registration year: Make an approximate distinction based on the year the vehicle was registered.

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AlessandraLynn
08/10/25 7:39am

As a frequent driver, I find the easiest way to distinguish between China 5 and China 6 emission standards is by checking the vehicle's production year. From experience, the China 6 standard wasn't nationally implemented until 2017, so if your car was manufactured in 2017 or later, it's most likely China 6 compliant. When purchasing a car, don't forget to check the manual or the nameplate under the windshield – the emission standard is usually stated there. China 6 vehicles have stricter pollution controls, emitting significantly fewer pollutants than China 5 vehicles, with particularly higher requirements for nitrogen oxides, making them more environmentally friendly. In such cases, I also like to check the VIN (Vehicle Identification Number), which can be found on the registration certificate. You can input this at the vehicle management office or on online platforms to get detailed information. Don't underestimate this distinction – China 6 vehicles have easier registration processes, higher resale values, and face fewer traffic restrictions in big cities. It's also good to stay updated on policy changes, as places like Beijing and Shanghai have already mandated China 6 standards. When buying a new car, always confirm with the salesperson to avoid future hassles.

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McMariana
09/25/25 8:02am

I always think distinguishing between China 5 and China 6 emission standards is crucial from a market perspective. For example, when selling a car, China 6 vehicles are more popular because they face fewer emission restrictions and can fetch a better price. The checking method isn't difficult: open the label under the co-pilot's door frame, or check the VIN code. Input it into online tools like the official vehicle management website, and it will display the standard year. China 6 emission standards are much stricter than China 5, reducing pollutants by over 30%, meaning fewer harmful substances like carbon monoxide are emitted. Currently, many cities restrict China 5 vehicles from being registered, especially for new car purchases where long-term considerations are key—choosing China 6 is definitely more worry-free. I suggest testing the car personally before buying, scanning vehicle information via an APP, or trying a tailpipe emission test. By comparison, China 6 vehicles have optimized powertrains and won't feel difficult to drive, though maintenance costs are slightly higher—calculate the overall cost-effectiveness. Remember to regularly maintain the emission system; don't wait until a fault occurs to panic.

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KaydenMarie
11/09/25 3:21am

I strongly support environmental protection, and the differentiation between China 5 and China 6 emission standards is actually helping to reduce the burden on the planet. The China 6 standard is more advanced, with a significant reduction in pollutant emissions, such as fewer particulate matters, which will make the air much cleaner. To distinguish between them, a quick method is to check the vehicle manual, where the emission level is clearly stated in black and white. Another way is to look up the registration certificate or VIN code, and input it into the vehicle management system for an instant check. Nowadays, the vehicle management office provides this service for free, so just take some time to visit. Another advantage of China 6 vehicles is better noise control, making the ride quieter. As drivers, opting for more China 6 vehicles means promoting green transportation, and the government also rewards such choices. When purchasing a car, pay more attention to the details, don't just go for the cheapest option. In the long run, using more environmentally friendly cars is beneficial for health.

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