What is the emission standard for cars in 2017?

[DavidAnn]

17-year-old cars comply with the China V emission standard. The full name of the China V standard is the National Fifth Stage Motor Vehicle Pollutant Emission Standard. The emission control level of the China V standard is equivalent to the Euro 5 emission standard currently implemented in Europe. The European Union has been enforcing it since 2009, imposing stricter limits on motor vehicle emissions such as nitrogen oxides, hydrocarbons, carbon monoxide, and particulate matter. From China I to China IV, each upgrade in the standard reduces vehicle pollution by 30% to 50%. Compared to the China IV standard, the China V standard can reduce nitrogen oxide emissions from light-duty vehicles by 25% and from heavy-duty vehicles by 43%. Functions of implementing the China V standard: Promoting the improvement of domestic gasoline and diesel quality for vehicles, contributing to the reduction of pollutants from new vehicles, and improving the emission conditions of a large number of in-use vehicles.