Information on China's border Check and Security Check 钙 Frontier Defense Inspection of the People's Republic of China. China firmly adheres to the policy ofopening to the outside world.Now 115 ports located in various places(including airports,harbors,border railway stations and passes)have been opened to the outside, every port has a Frontier Defense Inspection Station Frontier Defense Inspection Stations are an examination and administration organ for border entry and exit.Their tasks are to safeguard the sovereignty of the People's Republic of China,maintain its security and public order,facilitate international exchange,and examine and administer passports,certificates and means of transport of all persons who enter or leave the country. Entry Inspection For entry into China,aliens(excluding those of mutual visa exemption)shall apply for visa from Chinese diplomatic missions,consular offices or other resident agencies abroad authorized by the Ministry of Foreign Affairs.Except specifically designated on the visa,all aliens may enter or leave China at any open port.1 Information on China’s border Check and Security Check FrontierDefense Inspectionof the People’s Republic of China. China firmly adheres to the policy of opening to the outside world. Now 115 portslocatedin various places(including airports, harbors, border railway stations and passes) have been openedto the outside, every port has a FrontierDefense InspectionStation FrontierDefense InspectionStations are an examination and administration organfor border entry and exit. Their tasks are to safeguard the sovereigntyofthe People’s Republic of China, maintain its security and public order, facilitate international exchange, and examine and administer passports, certificates andmeans of transport of all persons who enter or leave the country. Entry Inspection For entry into China, aliens (excluding those of mutual visa exemption) shall apply for visa from Chinese diplomatic missions, consular offices or other resident agencies abroad authorized by the Ministry of ForeignAffairs. Except specificallydesignatedonthe visa, all aliens may enter or leave China at any open port