How to Check the National Emission Standard of a Vehicle?

2 Answers
HadleyMarie
07/25/25 6:04am
Methods to check the national emission standard of a vehicle are: 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 Public Inquiry Platform to check; 4. Differentiate based on the vehicle's manufacturing year. Vehicle emissions refer to harmful gases discharged from exhaust, including carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, and soot. Vehicle emission standards are categorized into: 1. Vehicles with a total mass less than or equal to 3.5 tons equipped with spark-ignition or compression-ignition engines; 2. Vehicles with a total mass greater than 3.5 tons equipped with spark-ignition engines; 3. Vehicles with a total mass greater than 3.5 tons equipped with compression-ignition engines.
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DelRachel
08/10/25 6:01pm
I've been driving for over a decade and often help friends check their vehicle's emission standards, mainly relying on a few simple methods. The most reliable way is to check the vehicle's registration certificate. Open the page with the vehicle registration information, where the environmental protection standard is clearly marked, such as 'China IV' or 'China V'. Alternatively, look for the environmental label on the upper right corner of the windshield, which may display terms like 'China III'. If the label is missing or not affixed, search online for the official website of the National Environmental Protection Agency and enter the Vehicle Identification Number (VIN) to query. The VIN can usually be found on the driver's side door frame or the engine compartment nameplate, typically a 17-digit alphanumeric combination. After entering it, the official website will display the vehicle's manufacturing year and emission level. Some regions have local apps, like Beijing's 'Traffic Management 12123', which also support checking environmental ratings. Remember, these official channels are the most accurate to avoid misinformation from unreliable sources. When checking, don't just rely on online forums, as the information may be outdated or unreliable, potentially affecting vehicle inspections or traffic restriction policies.
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