
Methods to identify China VI vehicle markings include: 1. Check the environmental protection information accompanying the vehicle list; 2. Consult the vehicle conformity certificate; 3. Look at the vehicle environmental protection label. Vehicle emission standards refer to regulations on the content of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, and soot emitted from vehicle exhaust. China VI is the national sixth-stage motor vehicle pollutant emission standard, implemented to enforce environmental protection laws, reduce and prevent vehicle exhaust pollution, and protect the ecological environment. The content standards for China VI are: 1. Carbon monoxide content is 500 milligrams per kilometer; 2. Fine particulate matter content is 3 milligrams; 3. Nitrogen oxide content is 35 milligrams; 4. Non-methane hydrocarbon content is 35 milligrams.

I find identifying China 6 emission standard vehicles quite straightforward. The most direct method is to check the environmental label affixed to the lower left corner of the windshield, which clearly displays either "Guo Liu" or "CHINA 6" in typically yellow color – the higher the number, the newer the emission standard. Some vehicles may have this label on the nameplate of the passenger door frame where the emission standard is also visible. When purchasing a car, sales personnel usually point this out; don’t forget to verify the vehicle conformity certificate and invoice, as they also state the emission level. China 6 is divided into phases a and b, with b being more stringent – choosing a b-phase model contributes more to environmental protection. When helping friends inspect used cars, if the label is worn and illegible, mobile apps like Autohome can scan the VIN to retrieve detailed information. This marking not only affects registration but also reduces pollution – making it a habit to check ensures your vehicle is compliant and eco-friendly.

At our auto repair shop, people often ask how to check the China 6 emission standard mark. My advice is to first park the car in a well-lit area and open the hood. Look for a metal plate on the side of the engine compartment or the frame beam, which should indicate the emission standard as "VI" or "China 6". Don’t forget to check the windshield sticker—if there’s no label, it’s likely an older car that doesn’t meet China 6 standards. A handy tip is to use a key or your phone’s flashlight to illuminate the corners of the label to see the numbers clearly. If it’s blurry, take a photo and zoom in for comparison. China 6 vehicles have lower emissions, which is better for clean air. During regular maintenance, I remind customers to check the mark status to avoid failing the annual inspection. Verifying this can also prevent wasting money on buying a non-compliant used car—it’s simple yet important.

Finding the China VI emission standard mark is not difficult. When I bought the car, I noticed the small label on the windshield displaying "China VI b" information. If you don't find it, just check the vehicle manual or use an APP to verify the emission standard by entering the VIN code. Basically, locating the mark will solve the problem.


