How to Determine Whether a Car is China 3 or China 4 Emission Standard?

3 Answers
DiTeagan
07/29/25 5:32pm
Methods to determine whether a car is China 3 or China 4 emission standard: 1. Check the vehicle's environmental protection label, which has clear markings on the back; 2. Visit the website of the Motor Vehicle Exhaust Pollution Supervision and Management Center for inquiry; 3. Bring the original or a copy of the motor vehicle registration certificate to the vehicle management office for inquiry; 4. For new cars, you can find the information in the vehicle's factory certificate, but generally, the certificate is kept at the vehicle management office. It is recommended to make a copy for your records when purchasing a new car. China 3 refers to the National Phase 3 Motor Vehicle Pollutant Emission Standard, and China 4 refers to the National Phase 4 Motor Vehicle Pollutant Emission Standard. The China 3 emission standard is equivalent to the Euro 3 emission standard.
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DiHadley
08/14/25 8:39am
I've been driving for ten years, and checking the national emission standards is a routine task. The most straightforward method is to look at the environmental label in the upper right corner of the windshield—the small sticker clearly indicates whether it's China 3 or China 4. If there's no sticker, check the vehicle registration certificate, also known as the 'big green book,' where the emission standard is clearly listed. When I last bought a car, the dealer pointed it out directly, which saved a lot of hassle. China 4 vehicles have more freedom in cities with driving restrictions, like Beijing and Shanghai, where China 3 cars might not be allowed in central areas, and they also pass annual inspections more easily. Additionally, you can check online using the Vehicle Identification Number (VIN)—many free websites offer this service; just enter the number. Alternatively, ask a 4S shop; they're professional and reliable. Remember, China 3 cars pollute more, so upgrading to China 4 is better for the environment. Make sure to check carefully to avoid trouble.
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SophiaLynn
10/13/25 7:33am
Working in the auto repair industry for years, identifying emission standards is routine. We often check the environmental information label on the door frame or engine compartment, which indicates China III or China IV. More accurately, we refer to the vehicle registration certificate, where emission parameters are clearly stated on the driving license. By entering the VIN code into a diagnostic tool, scanning it gives immediate results—simple and efficient. The difference between China III and China IV is significant, with China IV having stricter requirements for catalytic converters and lower emissions. During inspections, pay attention to the production year; around 2008 is the cutoff point, with most vehicles after 2008 being China IV. Sometimes, when owners are negligent, we help check. Given the strict traffic restriction policies, China III vehicles might face limitations. We recommend regular maintenance of the emission system to ensure compliance, ensuring a more worry-free driving experience.
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