Unlike other modes of transportation, international freight forwarding rules and international air transport freight coordination and the international air transport. Considered in different countries in the world economic and trade development level of region segmentation and society, the international air transport association is divided into three regions in the world, hereinafter referred to as the IATA international air transport association, each region is divided into several sub areas. Due to the division of the IATA mainly from the view point of air transport business, according to different regional economic, social and business conditions. Therefore, the administrative division of the world and we are familiar with.

Area (TC1) : including North America, central and South America, Greenland, Bermuda and the Hawaiian islands.

Area (TC2) : 2 by the whole continental Europe (including the European part of Russia) and adjacent islands, Iceland, the Azores, the African continent and adjacent islands, Asia area west of Iran and its composition. Also in this area and we know a political geographic differences in most area, it has three main subregion: 1. The African area: including most African countries and regions, but of Morocco, Algeria, Tunisia, north Africa, Egypt and Sudan are not included in the calculation. 2. Europe, including the countries in Europe and Morocco, Algeria, Tunisia, the three countries in Africa and Turkey (includes parts of Europe, also including the Asian section). Russia only includes the part of Europe. 3. The Middle East area: including bahrain, Cyprus, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, yemen, Sudan, Syria and the united Arab emirates, etc.

Three areas (TC3) : by the whole Asian continent and adjacent islands (except is included in the second part), Australia, New Zealand and adjacent islands, Pacific islands (including except in the area of the part). Among them: 1. The subcontinent area: including Afghanistan, India, Pakistan, Sri Lanka and other south Asian countries. 2. Southeast Asia, including China (including Hong Kong, Macao and Taiwan), southeast Asia countries, Mongolia, Russia and turkmenistan but cis countries of Asia, Micronesia islands region. 3. The southwest Pacific Asia region, including Australia, New Zealand, the Solomon islands. 4. Japan, South Korea area: including Japan and Korea only.