What is China VI in terms of national emission standards?

[DallasMarie]

China VI refers to the National VI standard, which is the sixth-stage national emission standard for motor vehicle pollutants. Methods to check if a vehicle meets the National VI standard include: 1. The vehicle's environmental protection compliance label; 2. The page in the vehicle conformity certificate where the label begins; 3. Estimating the emission standard based on the vehicle's manufacturing year; 4. Using the original or a copy of the motor vehicle registration certificate to inquire at the local vehicle management office. The National VI standard was established to prevent environmental pollution caused by exhaust emissions from compression-ignition and gas-fueled spark-ignition engines, protect the ecological environment, and safeguard human health. The emission limits for National VI are: 1. Carbon monoxide emissions at 700mg; 2. Non-methane hydrocarbon emissions at 68mg; 3. Nitrogen oxide emissions at 60mg; 4. Particulate matter emissions at 4.5mg.