When was the earliest China 5 emission standard implemented?

[ClaireFitz]

China 5 emission standard vehicles generally started rolling off the production line in 2012 at the earliest. China 5 is an emission standard that is stricter than China 4, resulting in fewer pollutants emitted, making it more environmentally friendly. From the vehicle's perspective, the main change is a more complex emission control system, which slightly increases costs. For car owners, there is no significant difference, although some models may experience slightly weaker power performance. Below is a brief introduction to the China 5 emission standard: 1. The China 5 standard, officially known as the National Fifth Stage Motor Vehicle Pollutant Emission Standard, is equivalent to the Euro 5 emission standard currently implemented in Europe. The European Union has been enforcing this standard since 2009, imposing stricter limits on nitrogen oxides, hydrocarbons, carbon monoxide, and particulate matter emitted by motor vehicles. From China 1 to China 4, each upgrade in the standard reduces vehicle pollution by 30% to 50%. 2. The China 5 standard was implemented nationwide on January 1, 2017. Cities like Beijing, Shanghai, Nanjing, and parts of Guangdong had already started enforcing the China 5 standard earlier.