Unlimited quantity. Official website, the people's government of Kaifeng City, inquired that by July 12, 2023, Kaifeng City had not issued a notice of restriction, so there was no restriction on the number of Kaifeng. In 2022, in order to reduce vehicle pollutant emissions, continuously improve air quality and relieve road traffic pressure, according to the provisions of People's Republic of China (PRC) Air Pollution Prevention Law, the Road Traffic Safety Law of the People's Republic of China and other laws and regulations, combined with the actual road traffic in the main urban area of Kaifeng City, Kaifeng City decided to limit the time from July 4, 2022 to February 365438, 2022. After the implementation of the number limit in Kaifeng, road traffic congestion has been effectively alleviated. At the same time, the number limit policy also encourages citizens to use public transport to reduce urban traffic pressure and environmental pollution.