
Methods and steps to check your vehicle's emission standard: 1. The simplest and most direct way is to look at the vehicle's environmental protection label, which has clear markings on the back. Just examine it carefully to find the information. 2. You can visit professional query websites for reliable results. 3. For new vehicles, you can check the vehicle's factory certificate, where the information can be found. However, the original certificate is usually kept at the vehicle office, so it's recommended to make a copy when purchasing a new car for future reference. 4. You can also personally visit the environmental protection window at the vehicle management office with your vehicle's registration certificate, where the staff will assist you in checking the information.

















I recently helped my neighbor look this up, and there are actually several ways to check the emission standard (China IV, V, etc.). The easiest is to check the environmental label on your car's windshield—that small sticker will have a prominent "China V" or "China VI" printed in the top-right corner. Alternatively, you can check the vehicle license. Flip to the third item on the auxiliary page under the 'Brand and Model' section. The alphanumeric code there will include a 'V' for China V or 'VI' for China VI. For example, my neighbor's car had 'SVW71811LM,' which indicates a China V vehicle. The most reliable method is to visit the official 'Motor Vehicle Environmental Protection' website, enter the VIN and engine number, and get instant results. This official system has clear records for vehicles dating back to 2008.

You youngsters can handle it right on your phones! Open Alipay and search for 'Vehicle Environmental Protection Inquiry', then enter the license plate number and the last six digits of the engine number – the results pop up in three seconds. My CS75 showed 'China VI B' when I checked last year. But note that this query requires the phone number registered with the vehicle. If checking a company-owned car, you'll need to register it as a non-personal vehicle via the Traffic Management 12123 app first. Also, there's an 'Emission Standard' section directly labeled on the second page of the vehicle registration certificate. This green booklet usually gets buried after buying a car, so you'll need to dig it out.

An experienced mechanic shares a practical tip: First, check the back of the fuel tank cap! Many car models have a small label inside the fuel filler neck, indicating GB18352.5-2013 for China V or GB18352.6-2016 for China VI. Then, open the engine hood and look for the nameplate—the emission standard line, though small, is definitely there. For owners, you can also check the eighth digit from the end of the engine number: 'L' means China VI, and 'K' means China V. My old Jetta’s engine number starts with 'J,' corresponding to the China IV standard. If all else fails, drive to an inspection station—their equipment can connect to the OBD port and scan for immediate results.

Everyone remembers that the manufacturing date can give a rough estimate. Cars purchased between 2011-2017 are generally China IV or China V standards. Gasoline cars manufactured after July 2017 are at least China V standard, and after July 2019, they are mostly China VI standard. The key is to look at the registration date on the vehicle license: 2008-2011 for China III, 2011-2017 for China IV, 2017-2019 for China V, and after 2019, mostly China VI. Friends used cars should pay special attention. Some cars relocated from other provinces may have falsely labeled emission standards. It's best to ask the dealer to provide an emission certification issued by the testing station.

The most accurate method is to bring your documents to the DMV to retrieve the vehicle records. Last month, I accompanied a colleague to handle this matter. We brought the original copies of their ID card, vehicle license, and registration certificate to the counter and filled out the "Motor Vehicle Environmental Information Inquiry Application Form." After the staff entered the license plate number, the system clearly displayed the vehicle model, engine model, and emission stage, and even printed a red-stamped certificate. Such official documents are particularly effective for appealing traffic restrictions, especially in cities like Beijing and Shanghai where National IV vehicles are banned from entering the outer ring roads. Having this proof on hand can save a lot of trouble.


