How to Identify China IV and China V Standards?

[AuroraLynn]

Methods to identify China IV and China V standards: Check the vehicle's environmental protection label; For new vehicles, refer to the factory certificate; Visit the vehicle management office for official inquiry; Or log in to the Motor Vehicle Environmental Protection Website and query by entering the vehicle's VIN number and the last 6 digits of the engine number. Below are relevant details: 1. Emission Regulations: There are three major global automotive emission standards: US, European, and Japanese. Although China's auto market has developed rapidly, its emission regulations started relatively late. Since 2000, China has implemented its first-phase emission standards based on European norms, followed by China II, III, IV, and now China V. 2. Differences between China IV and V: Compared to China IV, the China V standard reduces nitrogen oxide (NOx) emissions by 25% for light vehicles and 43% for heavy vehicles. The key difference is stricter NOx limits for heavy vehicles under China V. Additionally, standards for NOx + hydrocarbons (HCNOx), particulate matter (PM) concentration were raised. China V also introduced new metrics: particulate number (PN) and non-methane hydrocarbons (NMHC). China V standards are comparable to Europe's current Euro 5 emission control levels.