How to Identify National 5 and National 6 Standards When Buying a Car?

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Methods to identify whether a car meets National 5 or National 6 standards are as follows: 1. Check the vehicle conformity certificate: This clearly indicates whether the car meets National 5 or National 6 standards. The emission standard is explicitly noted on the vehicle conformity certificate. Note that this certificate is collected and archived by the vehicle management office during registration, so it's advisable to take a photo or make a copy before registration for future reference. 2. Environmental protection list: Similar to the vehicle conformity certificate, this document records the car's emission standard. By reviewing this list, you can clearly determine whether the vehicle meets National 6 standards. 3. Visit relevant query websites such as the Motor Vehicle Environmental Protection Network, and enter the vehicle identification number (VIN) and engine number to directly check the standard.