Where to Check China 5 and China 6 Vehicle Emission Standards?

3 Answers
DeChloe
07/29/25 4:41am
You can check the China 5 and China 6 emission standards on the vehicle acceptance sheet, which includes details such as the model, color, emission standard, engine number, and chassis number. The China 5 emission standard is marked with a Roman numeral 'V', while the China 6 emission standard is marked with a Roman numeral 'Ⅵ'. Typically, there is a nameplate under the co-driver's door, and related labels can also be found in places like the lower left corner of the front windshield, the driver's door pillar, the left side of the dashboard, and the engine compartment, where you can check the vehicle model number. For used cars, you can query the vehicle model number on the environmental protection website. The steps are as follows: 1. Identify the vehicle model number, which is usually marked on the car's nameplate; 2. Visit the Motor Vehicle Environmental Protection Website, enter the vehicle model number and verification code in the input box, and click 'Query' to proceed.
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StAlan
08/12/25 5:24pm
When I bought a car, I paid special attention to the difference between China 5 and China 6 emission standards. The most straightforward way is to check the Vehicle Conformity Certificate or the Environmental Information List attached to the car, which clearly states the emission standard. If the documents are lost, you can also find clues on the nameplate on the door frame—note down the complete vehicle model number and then inquire through the manufacturer's customer service or environmental protection websites. For example, when I had my car inspected last year, I found that the first page of the registration certificate also listed this data. If you're buying a used car online, the platform's details section usually specifies whether it's China 5 or China 6, but remember to verify the actual chassis number to avoid purchasing the wrong one and facing registration issues. By the way, key regions like the Pearl River Delta have already restricted the transfer of China 5 vehicles since last year, so this is something you must keep in mind.
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JosiahDella
10/03/25 3:54am
Here are several common methods to check emission standards: First, look for the environmental label sticker on the front windshield, which will indicate China 5/China 6. If it's been removed, open the engine hood and find the aluminum nameplate—some models directly print 'GB18352.5-2013' for China 5 or 'GB18352.6-2016' for China 6. For mobile queries, search the 'Motor Vehicle Environmental Query' mini-program on WeChat, enter the VIN and the last six digits of the engine number for instant results. The Environmental Protection Bureau’s official website also provides a query channel. When buying a new car, ensure the sales contract specifies the emission standard—a friend was misled last year when an oral promise of China 6 turned out to be China 5 upon delivery. For registration in key cities, always verify local environmental policies.
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