What was the China National Emission Standard for cars in 2010?

[LaGia]

In 2010, cars could meet either China National IV or China National III emission standards, depending on the specific model. Below is an introduction to the China National IV standard: 1. Actual situation of China National IV vehicles: Many vehicles produced after 2009 could already meet the China National IV emission standard, with some high-end models achieving it as early as 2007 or 2008. However, most vehicles produced before 2009 did not meet the China National IV emission standard. 2. Implementation date of China National IV standard: The China National IV standard was piloted in 2010 and fully implemented in 2011, replacing the previous China National III standard. Automakers typically produce vehicles that comply with national emission standards in advance, especially for mid-to-high-end models, which often meet the China National IV standard earlier.