What does China V emission standard mean?

[DeKarter]

China V emission standard is explained as follows: 1. The National Fifth Stage Motor Vehicle Pollutant Emission Standard, known as "China V Standard", has an emission control level equivalent to the European Union's currently implemented Euro 5 emission standard; 2. The EU has been implementing this standard since 2009, which imposes stricter limits on motor vehicle emissions such as nitrogen oxides, hydrocarbons, carbon monoxide, and particulate matter. Each upgrade from China I to China IV reduces vehicle pollution by 30% to 50%; 3. The China V standard was implemented nationwide on January 1, 2017. Cities like Beijing, Shanghai, Nanjing, and some cities in Guangdong have already adopted the China V standard; 4. Starting from April 1, 2016, all imported, sold, and registered light-duty gasoline vehicles, light-duty diesel passenger vehicles, and heavy-duty diesel vehicles (only for public transport, sanitation, and postal purposes) in the Beijing-Tianjin-Hebei region must comply with the China V emission standard.