How to Check Whether a Car Meets China 5 or China 6 Emission Standards?

2 Answers
Poppy
07/29/25 6:03am
To check whether a car meets China 5 or China 6 emission standards, you can: 1. Check the vehicle's factory certificate; 2. Refer to the vehicle's environmental protection standard list; 3. Examine the vehicle conformity certificate. The differences between China 5 and China 6 standards are: 1. Different carbon monoxide emission limits: China 5 allows 1000mg while China 6 permits only 700mg. 2. Different letter representations: China 5 is denoted by V whereas China 6 uses VI. 3. Different issuing authorities: China 5 was issued by the Ministry of Environmental Protection, while China 6 was jointly issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision. 4. Different control levels: China 5's emission control level is equivalent to Europe's fifth-stage emission standard, while China 6 establishes standards specifically for preventing environmental pollution from compression-ignition and gas-fueled ignition engine vehicles to protect public health.
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LaEden
08/12/25 9:33am
To check whether a car meets China 5 or China 6 emission standards, I've done it several times myself. The most straightforward method is to look through the vehicle's accompanying documents, such as the Certificate of Conformity, which clearly states the emission standard, like China 5 or China 6. Alternatively, check the environmental label on the windshield—it's a small sticker that's easy to read at a glance. If those are missing, download a car-related app on your phone and enter the license plate number or VIN to query the information; many tools now provide results for free. I think this is quite important because China 6 cars have easier access to big cities and smoother annual inspections. When buying a used car, never be careless—make sure the contract specifies the standard to avoid future transfer issues. New cars on the road are mostly China 6B now, which are more environmentally friendly and give peace of mind when driving. Remember to regularly check the emission system to reduce pollution and save fuel. Sharing experiences helps everyone avoid being scammed.
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