How to Check the National Emission Standard of a Vehicle?
2 Answers
Methods to check the national emission standard of a vehicle: 1. Check the vehicle's environmental protection label; 2. Look at the vehicle's factory certificate or vehicle conformity certificate; 3. Log in to the Motor Vehicle Environmental Protection Network public inquiry platform; 4. Differentiate based on the vehicle's manufacturing year. Vehicle emission standards are divided into: 1. Vehicles with a total mass less than or equal to 3.5 tons equipped with spark-ignition engines or compression-ignition engines; 2. Vehicles with a total mass greater than 3.5 tons equipped with spark-ignition engines. Additional information: Vehicle emissions refer to harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulates, and soot discharged from exhaust.
When I used to check vehicle emission standards, I relied on a few simple methods that were quite convenient. First, I would look at the environmental information label on the front windshield, which directly states the 'National Standard' level, such as 'National IV' indicating the China 4 emission standard. If the label was unclear, I would use the VIN (Vehicle Identification Number) for inquiry—also known as the chassis number—a string of alphanumeric characters found at the bottom of the windshield. I downloaded apps like 'Environmental Pass' on my phone, where entering the VIN would instantly display the results, including emission history. During the check, don’t forget to review the vehicle’s registration certificate or license, as these documents also clearly mark the standard value. This is crucial because cities enforce strict traffic restrictions on National 1 and National 2 vehicles, and failing to meet standards can result in annual inspection failures. Regularly checking your vehicle’s emission level helps avoid trouble and reduces pollution emissions.
