What is the symbol for China's National VI vehicle emission standard?

2 Answers
Genesis
07/28/25 11:11pm
National VI standard symbol is National Ⅵ. The implementation of China's National VI emission standard will be divided into two phases: "National VI a" and "National VI b", with corresponding time points being July 1, 2020 and July 1, 2023. More information about the National VI standard is as follows: 1. The National VI emission standard is an upgraded version of the current National V emission standard, imposing more stringent and scientific requirements on vehicle exhaust pollutants. 2. National VI vehicles are those that meet the emission standards of the sixth stage of national motor vehicle pollutant emission standards. National V vehicles are those that meet the emission standards of the fifth stage of national motor vehicle pollutant emission standards. Different emission standards have varying limits on vehicle pollutant emissions. From National I to National VI, the limits for vehicle exhaust pollutant emissions have become increasingly stringent, with the National VI standard being at least 50% stricter than the National V standard.
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StBeckett
08/12/25 3:34am
The China 6 emission standard isn't marked with any mysterious symbols—it's simply labeled as 'China VI'. When I bought my car last year, I paid special attention to this. The salesperson pointed out a yellow sticker in the corner of the windshield, which clearly read 'China VIb'. Later, when registering the car, the DMV technician mentioned that this identifier must also appear on the vehicle's environmental compliance list. Nowadays, domestic models like the Geely Xingrui and Haval H6 have nameplates directly engraved with 'GB18352.6-2016', which experts immediately recognize as the China 6 standard. Here's a detail to note: China 6 is further divided into Phase a and Phase b. Vehicles manufactured after 2023 generally meet the stricter Phase b requirements, so it's crucial to check this identifier when buying a used car.
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