Where to Check Vehicle Emission Standards?
2 Answers
Vehicle emission standards can be checked through the VIN code. The locations of the VIN code are: 1. Left side of the dashboard; 2. Lower left side of the windshield; 3. On the vehicle's nameplate; 4. On the body above the right front shock absorber; 5. In the trunk area; 6. On the door hinge pillar, door lock pillar, or one of the door edges connected to the lock pillar. The VIN code refers to the Vehicle Identification Number, consisting of 17 characters, which includes the vehicle's manufacturer, year, model, body type and code, engine code, and assembly location. The functions of the VIN code are: 1. To confirm the vehicle's identity; 2. For traffic violation inquiries; 3. To check the vehicle's batch; 4. For precise parts lookup.
A few days ago, I just helped a friend check his car's emission standard. We went straight to the car to find that small label—it's usually on the metal plate under the engine hood or the inner side of the door frame, with a yellow-green environmental protection sticker indicating the national emission standard (e.g., China IV, China V, etc.). You can also check the vehicle license; the environmental registration number typically specifies the emission level. Some models have this information recorded in the user manual or purchase invoice. With increasingly strict environmental regulations, knowing your car's standard helps determine whether modifications or filter maintenance are needed. For instance, China VI-compliant vehicles have higher requirements, and regular checks can reduce exhaust pollution's impact on air quality and health. My friend's car is older, identified as China IV, but with proper maintenance, it’s fine. This method is simple and practical—no need for professionals, just a two-minute DIY task.
