Expo 2010 Shanghai China Duration: May 1 to Oct 31, 2010 Welcome to the World Expo 2010 Shanghai China. In order to ensure a safe and orderly visit, the organizer of Expo 2010 has formulated   these rules. Operation Time The operation time of the Expo Site shall be 9:00~24:00. The opening hours of the pavilions shall be 9:30 ~ 22:30. Visitors shall enter the Expo Site before 21:00 and leave before 24:00 on the day of admission. Those with evening admission tickets may enter the Expo Site between 17:00 and 21:00. Orderly Entry Visitors shall go through ticket check and security check before entering the Expo Site. Those who refuse to cooperate may be denied entry. Children eligible   for free admission and other visitors with walking difficulties may only enter the Expo Site when accompanied by adults. Codes of Conduct Visitors are required to observe public order within the Expo Site, and shall queue up to enter the pavilions or event venues  . In the Expo Site, visitors are prohibited from: (1) damaging any buildings, facilities or exhibits. (2) climbing over any buildings or fences (3) conducting any exhibitions or promotional or fundraising activities without permission. Special Management Measures In case of bad weather, too many visitors and technical problems, the organizer may restrict the entry of visitors into the Expo Site, pavilions or event venues.  _  Visitors Service Centers are available in the Expo Site, providing visitors with such services as inquiries, rental, lost and found, first aid, mother-baby service, and assistance for lost persons. The centers also accept and process visitors' complaints. Free rental of wheelchairs are available for the disabled. We can infer that the organizer is intended to help   _  .
parents with children under 5 foreigners women the disabled