How to Distinguish Between National 5 and National 6 Emission Standards for Cars?
2 Answers
Methods to distinguish whether a car meets National 5 or National 6 emission standards: 1. For newly purchased vehicles, check the new vehicle certificate which indicates the emission standard; 2. Take the vehicle registration certificate (green book) and driving license to the vehicle management office for staff inquiry; 3. Online query: Obtain the vehicle model number from the nameplate below the co-pilot's door, visit the Motor Vehicle Environmental Protection website, input the model number and correct verification code, then click search to view relevant information including emission standards; 4. Car website query: Detailed descriptions of various car models including their emission standards are available on these websites, simply locate your car model for direct viewing.
When I first learned to distinguish between China 5 and China 6 vehicles, I preferred checking the vehicle’s nameplate directly. It’s usually located under the engine hood or on the door frame, displaying the production date. Since the China 6 standard was implemented in phases starting from 2019, a date of 2019 or later likely indicates a China 6 vehicle. If there’s no nameplate, look for the VIN (17-digit Vehicle Identification Number), note it down, and check online. Why is this method reliable? Because China 6 vehicles incorporate many new technologies, such as more complex exhaust treatment systems to reduce particulate emissions. I’ve seen many experienced car owners misjudge simply by overlooking these details. A friendly reminder: whether buying a new or used car, inspect carefully to avoid being misled—it directly affects registration and environmental ratings. Remember, a quick check can save you a lot of trouble.
