What does the China 6 standard mean?

[LeAbigail]

China 6 standard means a 50% reduction in carbon monoxide emissions for gasoline vehicles, a 50% decrease in the emission limits for total hydrocarbons and non-methane hydrocarbons, and a 42% stricter limit on nitrogen oxide emissions. Here is some relevant information about the China 6 standard: 1. Implementation time: The implementation of the China 6 emission standard will be divided into two phases: "China 6A" and "China 6B," corresponding to the dates of July 1, 2020, and July 1, 2023, respectively. China 6A can be seen as a transitional phase from China 5 to China 6. 2. Document promulgation: The "Limits and Measurement Methods for Emissions from Light-duty Vehicles (China 6)" clearly states the "latest" time for implementation but does not rule out the possibility of implementing the China 6 standard before the specified time, meaning that some local governments may accelerate the implementation of the China 6 standard.