How to Identify China III, China IV, China V, and China VI Vehicles?

2 Answers
McJayden
07/25/25 1:17pm
To identify China III, China IV, China V, and China VI vehicles, the following methods can be used: 1. Check the vehicle's environmental protection label, which has clear markings on the back. 2. Visit the Motor Vehicle Environmental Protection Website and enter the vehicle's VIN number and the last 6 digits of the engine number to query. Relevant information about China III, China IV, and China V standards is as follows: 1. China III Standard: Nationwide implementation on July 1, 2007, involving upgrades to the engine and exhaust system. It improves fuel injection quality to ensure better fuel atomization, leading to more complete combustion and reduced pollution. 2. China IV Standard: Nationwide implementation on July 1, 2010, involving upgrades to the post-emission treatment system and fuel quality. 3. China V Standard: Nationwide implementation on January 1, 2018, imposing restrictions on vehicle emissions such as nitrogen oxides, hydrocarbons, carbon monoxide, and suspended particles.
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VanAlyssa
08/11/25 8:40pm
To determine whether a car meets China III, China IV, China V, or China VI emission standards, my favorite simple method is to check the vehicle's manufacturing year. China III vehicles are mostly from before 2008, as that's when China began promoting emission standards. China IV was the mainstream from 2011 to 2016—my friend's old car falls under this standard. China V was common from 2017 to 2020, and I've seen many of these cars during repairs with advanced exhaust filtration systems. China VI has been widely adopted since 2020, and most new cars now meet this standard. Besides the manufacturing year, you can also check the vehicle registration certificate, which lists the specific emission standard under the 'Environmental Standard' section. If you don’t have the certificate, you can enter the VIN code into a mini-program like 'Autohome' APP, which instantly displays the information. Sometimes, I use an OBD diagnostic tool to check the emission system—China VI vehicles have more sensitive sensors. Remembering this is crucial because it affects urban driving restrictions. China III vehicles might be banned from city centers, while China VI cars pass annual inspections easily, being both eco-friendly and cost-effective.
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