How to Determine Which National Emission Standard a Vehicle Belongs To?

[AaronMarie]

Methods to determine which national emission standard a vehicle belongs to: 1. Check the vehicle's environmental protection label, which usually has a clear mark on the back; 2. Visit the website of the Motor Vehicle Exhaust Pollution Supervision and Management Center to inquire; 3. Take the vehicle registration certificate to the local vehicle management office for inquiry; 4. For new vehicles, you can refer to the vehicle's factory certificate, but this document is usually kept by the vehicle management office. Therefore, it is recommended to make a copy for your records when purchasing a new car; 5. Differentiate based on the year the vehicle was registered. Vehicle emission standards refer to the regulations on the content of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, and soot emitted from vehicle exhaust.