The color of the annual inspection mark changes every year to allow the traffic police to distinguish which vehicles have not been inspected in time.
Green label" and "yellow label" refer to environmental protection signs. They are not annual inspection signs. The colors are different in different years.
Extended information:
Car The inspection sign affixing device refers to pasting the annual inspection sign on a transparent plastic carrier and fixing it on the windshield with a clip (patented). It is a practical and environmentally friendly tool according to the regulations of the traffic management department. , annual inspection signs (environmental protection, compulsory traffic insurance, annual inspection standards), etc. must be publicized.
The automobile environmental protection mark is a classification mark of motor vehicle emission standards issued by the state. There are two categories, yellow and green, according to vehicle type and emission. The standards are reviewed and then issued. The purpose is to meet the needs of energy saving and emission reduction inspections and regular environmental inspections of automobiles.
Reference: Baidu Encyclopedia - Automotive Environmental Labels