Where to Check the Vehicle's National Emission Standard?

[VonCharles]

Places to check the vehicle's national emission standard include: 1. Look at the back of the car's environmental protection compliance label; 2. Check the page where the vehicle certification number starts; 3. Take the vehicle registration certificate to the local vehicle management office for verification. Emission standards refer to the levels of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulates, and carbon smoke emitted from vehicle exhaust. Vehicle emission standards are established to prevent environmental pollution caused by exhaust from compression-ignition and gas-fueled spark-ignition engines, protect the ecological environment, and safeguard human health. Vehicle emission standards are categorized into: 1. Vehicles with a total mass of ≤3.5t equipped with spark-ignition or compression-ignition engines; 2. Vehicles with a total mass >3.5t equipped with spark-ignition engines; 3. Vehicles with a total mass >3.5t equipped with compression-ignition engines.