What National Emission Standard Did Trucks Comply with in 2014?

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It depends on the specific vehicle model. Trucks manufactured in December 2014 generally complied with the National III emission standard. You can check the environmental label located at the top-right corner of the vehicle's windshield, which clearly indicates the emission standard. More relevant information is as follows: 1. Emission Method: Most trucks produced in 2014 met the National III emission standard. To determine the exact standard, you need to consider the truck's brand, model, and engine type. The simplest way is to check the vehicle's environmental label, which has clear markings on the back. Alternatively, you can visit the Motor Vehicle Exhaust Pollution Supervision and Management Center's website or inquire at the vehicle management office with the vehicle registration certificate. 2. Factory Certificate: For new vehicles, you can refer to the factory certificate to find the emission standard. However, typically, the certificate is kept at the vehicle management office. Therefore, it's advisable to make a copy when purchasing a new vehicle for future reference.