Based on a brief introduction to China's light-duty vehicle CN 6
heavy-duty engine and vehicle CN Ⅵ
non-road mobile machinery stage Ⅳ
and marine engine stage Ⅰ and Ⅱ emission regulations
the main updates of content of the next generation emission regulations is summarized. The focus is to strengthen real-world emission controls and use regulations to promote the development and applications of “best emission control technologies”. At the same time
through the comparative analysis of the relevant regulations in Europe and the United States and the interpretation of the latest regulations in China
the development trend and some suggestions for China's mobile source emission regulations are put forward.