When was China V implemented?

[RobertFitz]

National Fifth Stage Motor Vehicle Pollutant Emission Standards, also known as "China V Standards," were implemented nationwide on January 1, 2017. The emission control level of China V Standards is equivalent to the European Union's Fifth Stage Emission Standards currently in effect. Relevant information about "China V Standards" is as follows: 1. The European Union has been implementing these standards since 2009, which impose stricter limits on nitrogen oxides, hydrocarbons, carbon monoxide, and particulate matter emitted by motor vehicles. 2. From China I to China IV, each upgrade in standards reduces vehicle pollution by 30% to 50%. 3. Cities such as Beijing, Shanghai, Nanjing, and some cities in Guangdong have already begun implementing China V Standards. 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 (for public transport, sanitation, and postal use only) in Beijing, Tianjin, and Hebei must comply with the "China V" emission standards.