How to Identify the National Emission Standard of a Vehicle?
2 Answers
Methods to identify the national emission standard of a vehicle: 1. Check the vehicle's environmental protection label, which has clear markings on the back; 2. Take the original or a copy of the vehicle's registration certificate to the environmental protection window of the vehicle management office or the local motor vehicle pollution management center for inquiry; 3. Log in to the website of the Motor Vehicle Exhaust Pollution Supervision and Management or the Motor Vehicle Environmental Protection Network to check; 4. For new vehicles, refer to the vehicle's factory certificate, which clearly states the emission standard. Vehicle emission standards refer to regulations on the content of harmful gases such as carbon monoxide, hydrocarbons, nitrogen oxides, particulates, and carbon smoke emitted from vehicle exhaust. Emission regulations are voluntarily recognized by ECE participating countries, while emission directives are mandatory for EEC or EU participating countries.
Having driven my own car for so many years, identifying the vehicle's emission standard (like China 5 or China 6) isn’t too difficult. Start by checking the vehicle’s nameplate—that label stuck in the engine bay or on the inside of the door—it usually states the standard clearly. Don’t forget the conformity certificate or compliance documents you got when buying the car; those definitely list the emission level. Nowadays, smartphones make it easy—download an environmental app or visit the environmental department’s website, enter the VIN (vehicle identification number), and the data pops up automatically, saving time and effort. I think the key is forming a habit—checking before buying a used car or during annual inspections to avoid issues with roadworthiness or resale value. The DMV staff can also help verify it. Simply put, don’t slack off—cross-check all sources carefully.
