How to Check the Emission Standard of a Motor Vehicle?

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Here are the methods to check the emission standard of a motor vehicle: 1. Directly observe the vehicle's environmental protection label, which has clear markings on the back. 2. Log in to the website of the Motor Vehicle Exhaust Pollution Supervision and Management Center to inquire. 3. Bring the original or a copy of the motor vehicle registration certificate to the vehicle management office for inquiry. 4. Differentiate based on the vehicle's registration year. Generally, vehicles registered after 2008 are China IV standard, while those registered in 2007 are China III standard. Here is more information about motor vehicle emission standards: 1. The main pollutants emitted by vehicles include hydrocarbons, nitrogen oxides, carbon monoxide, and PM particles. 2. Technologies such as catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices can be applied to control and reduce vehicle emissions to below the specified standards.