What are the symbols for emission standards from China I to China VI?
2 Answers
The symbols for emission standards from China I to China VI are: I, II, III, IV, V, VI. The implementation of automobile pollutant emission standards aims to reduce vehicle exhaust emissions and environmental pollution. Vehicle exhaust refers to harmful gases emitted from the exhaust, such as CO (carbon monoxide), HC (hydrocarbons), NOx (nitrogen oxides), and PM (particulates, soot). Currently, the country has introduced the China VI emission standard, which is considered a relatively strict emission standard compared to China V. The China VI emission standard is divided into two phases: China VIa and China VIb, which are planned to be uniformly implemented nationwide on July 1, 2020, and July 1, 2023, respectively.
As a long-time car collection enthusiast, I find the symbol system for emission standards from China 1 to China 6 very intuitive. China 1 corresponds to China I, using the Roman numeral I; China 2 is China II, with the symbol II; China 3 is China III; China 4 is China IV; China 5 is China V; and China 6 is China VI. These labels are commonly seen on the green environmental stickers of vehicles or vehicle certification documents. I remember at an auto show, the China III symbol was prominently displayed on certain models, indicating weaker exhaust control. China 6 is further divided into phases a and b, but the symbol remains China VI, with stricter controls. Understanding these symbols is very helpful when buying a car, especially in cities with driving restrictions. Last time I changed cars, I chose a China V model, with the China V symbol directly affixed to the corner of the front window—both eco-friendly and hassle-free. Paying attention to these details long-term helps avoid high-emission vehicles and assists novice enthusiasts in selecting suitable models. Overall, the evolution of these symbols reflects the upgrade trend in emission standards, making it clear at a glance from smaller to larger numbers.
