In which year were China IV vehicles produced?

[Desiree]

China IV vehicles were produced after 2011, and there are also vehicles produced in 2010 or earlier. The implementation time of the China IV standard varied across different regions, with some areas adopting it earlier than others. In regions where the standard was implemented earlier, China IV-compliant vehicles were produced sooner. It wasn't until July 1, 2011, that the China IV standard was fully implemented nationwide. More information about the China IV emission standard is as follows: 1. The China IV emission standard is the fourth stage of national standards for motor vehicle pollutant emissions. Compared to China III, the China IV standard requires light-duty vehicles to reduce single-vehicle pollutant emissions by approximately 50%, heavy-duty vehicles to reduce single-vehicle emissions by about 30%, and particulate matter emissions to be reduced by over 80%. 2. Different countries and regions adopt different emission standards based on their actual conditions. However, there are mainly three test cycles for passenger vehicle emissions: the EU's NEDC cycle, the US's FTP75 cycle, and Japan's JC08 cycle.