What does China VI mean?

[VanCassidy]

China VI refers to the China 6 emission standard, which primarily pertains to vehicle exhaust emission regulations. The China 6 standard is divided into China 6a and China 6b. According to relevant regulations, the carbon monoxide content under the China 6b standard is reduced by half compared to the China 5 standard, and the standards for carbon oxides are also approximately halved. China 6 adopts the Worldwide Harmonized Light Vehicles Test Procedure (WLTP), comprehensively tightening testing requirements, effectively narrowing the gap between laboratory-certified emissions and real-world driving emissions, and laying the foundation for coordinated control of fuel consumption and emissions. The emission standard improves the emission control level of vehicles under actual driving conditions, facilitates supervision, and effectively prevents cheating behaviors that result in excessive emissions.