Unlimited April 29th to May 3rd is the "May 1st International Labor Day" holiday. According to the "Regulations on Motor Vehicle Traffic Management Measures in Tianjin", the public security traffic control department reminds as follows: From April 29 to May 3, the tail number of motor vehicles with foreign license plates in this city and the passenger cars with foreign license plates and regional license plates in this city are not restricted during peak hours, and trucks still need to comply with the regulations on truck restrictions. Tianjin, also known as Jingu and Jinmen, is a provincial-level administrative region, municipality directly under the Central Government, national central city and mega-city of People's Republic of China (PRC), and is the economic center of the Bohai Rim region determined by the State Council.