What is the method to check National 3 and National 4 emission standards for motor vehicles?
4 Answers
The methods to check National 3 and National 4 emission standards for motor vehicles are: 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 to inquire; 3. Bring the original or a copy of the motor vehicle registration certificate to the vehicle management office for inquiry; 4. For new vehicles, check the vehicle's factory certificate. National 3 refers to the National Phase 3 Motor Vehicle Pollutant Emission Standards, and National 4 refers to the National Phase 4 Motor Vehicle Pollutant Emission Standards. Automobile exhaust emission standards regulate the content of harmful gases such as carbon monoxide, nitrogen oxides, and carbon smoke emitted from vehicle exhaust.
As an old hand who has driven for over 20 years, I've seen all kinds of vehicle emission issues. To determine whether it's China III or China IV standard, the most reliable method is to check two things: the vehicle's factory certificate and the environmental protection label. There's a small sticker on the top right corner of the windshield that says China III or China IV. If it's lost or not stuck, check the duplicate of the vehicle registration certificate where it's also recorded. If you still can't find it, open the engine hood and look for the metal nameplate, which shows the production year and basic information. Generally, vehicles manufactured between 2007 and 2010 are mostly China III, while those after 2011 are China IV. By the way, don't forget the VIN (Vehicle Identification Number). Write it down and check it on the traffic bureau's website by entering the number—it's a one-click solution. This is not something to be careless about, as China III vehicles face many restrictions in big cities, especially when buying used cars, to avoid being fined during roadside checks. Knowing more about emission standards can save you a lot of trouble regarding pollution issues while driving.
Young people who are into cars should pay attention to environmental protection. I now focus on emission standards for judgment. To determine if it's China III or China IV, first check the vehicle registration date. For example, my car was purchased in 2014, so it's definitely China IV. The most convenient way is to use a mobile app—download 'Traffic Management 12123' or a vehicle management platform, enter the VIN number, and the results will be clear. Last time, when helping a friend inspect a used car, the app showed historical records, avoiding the purchase of an outdated China III vehicle. This method is fast and accurate, requiring no professional tools. Why care? China III vehicles emit more exhaust in cities, affecting health. I always encourage everyone to choose models with China IV or higher standards, and even better, support new energy vehicles. Environmental protection isn't just a slogan; daily car choices can contribute. Don't forget to share these tips with friends.
Common questions from car owners in the workshop. Simple steps: Find the vehicle's VIN number, located under the windshield or on the dashboard. Write down the numbers and call the DMV hotline, report the number and directly ask about the emission level. Alternatively, check the date on the door frame nameplate; most cars before 2008 are China III, and those after 2011 are China IV. You can also read the data by connecting a diagnostic device to the OBD port, which is easy to operate. Daily observations show that older cars are more likely to exceed emission standards, so regular maintenance and checking standards are recommended to avoid penalties.
