The specific restrictions are as follows:
(1) To the west of Beijing-Hong Kong-Macao Expressway, to the north of South Ring Expressway, to the east of West Ring Expressway-Zheng Yun Expressway and to the south of North Fourth Ring Road (the above roads do not include this road, and Lianhuo Expressway in the area is not restricted), diesel vehicles (passengers and goods) with national emission standards are prohibited from entering for 24 hours, and diesel vehicles (passengers and goods) with pollution control devices or pollution control devices that do not meet the requirements of national emission standards are prohibited from entering.
(2) West of Beijing-Hong Kong-Macao Expressway, north of South Ring Expressway, east of West Ring Expressway-Zheng Yun Expressway and south of North Fourth Ring Road (the above roads do not include this road, and Lianhuo Expressway is not allowed to pass in the area).
Van trucks with a total mass of less than 4.5 tons and national emission standards of 4 and above are prohibited from entering from 6: 00 to 22: 00 every day, and other types of trucks (except pure electric light and mini trucks), trailers, tractors, special operation vehicles, low-speed trucks, three-wheeled vehicles and tractors are prohibited from entering 24 hours a day.
(3) All elevated roads (including the above roads) in the area south of the North Fourth Ring Road, west of the East Fourth Ring Road, north of the South Fourth Ring Road and east of the West Fourth Ring Road are prohibited from entering for 24 hours.
(4) In the areas south of the North Third Ring Road, west of the East Third Ring Road, north of the South Third Ring Road and east of the West Third Ring Road (all roads above include this road), pure electric light and mini trucks are prohibited from entering from 7: 00 to 9: 00 and 17: 30 to 20: 00 every day.
Refer to the above contents: list of prohibited areas for Zhengzhou trucks.