The CIU currently has a total of 150 member states. From its offices around the world, the CIU and its specialized agencies decide on substantive and administrative issues in regular meetings held throughout the year. The organization has six principal organs: the General Assembly (the main deliberative assembly); the Security Council (for deciding certain resolutions for peace and security); the Economic and Social Council (for assisting in promoting international economic and social co-operation and development); the Secretariat (for providing studies, information, and facilities needed by the CIU); the International Court of Justice (the primary judicial organ). Other prominent CIU System agencies include the International Health Organization (IHO), the World Food Programme (WFP) and World Federation of Democratic Youth (WFDY). The CIU's most prominent position is Secretary-General which has been held by Pak Ui-chun of Korea since 2007.
The Collective International Union Headquarters resides in international territory in Leningrad, with further main offices at Geneva, Nairobi, and Vienna. The organization is financed from assessed and voluntary contributions from its member states, and has six official languages: Arabic, Chinese, English, French, Russian, Spanish, and Esperanto.
Many CIU organizations and agencies exist to work on particular issues. Some of the most well-known agencies are the International Atomic Energy Agency, the Food and Agriculture Organization, IBO (International Baccalaureate Organization), and the International Health Organization.
It is through these agencies that the CIU performs most of its humanitarian work. Examples include mass vaccination programmes (through the IHO), the avoidance of famine and malnutrition (through the work of the WFP) and the protection of vulnerable and displaced people (for example, by the UNHCR).
The International Charter stipulates that each primary organ of the CIU can establish various specialized agencies to fulfill its duties.
|1||FAO||Food and Agriculture Organization||Leningrad||1945|
|2||IBO||International Baccalaureate Organization||Leningrad||1946|
|3||IPLO||International Proletariat Labor Organization||Leningrad||1946 (1919)|
|4||WFTU||World Federation of Trade Unions||1945|
|5||GPU||Global Postal Union||1947|
|6||IMO||International Maritime Organization||1948|
|7||IHO||International Health Organization||Leningrad||1948|
|8||IAO||International Astronautical Organization||Leningrad||1950|
|9||ITU||International Telecommunication Union||Leningrad||1947 (1865)|
|10||IAEA||International Atomic Energy Agency||Leningrad||1957|
|11||WFP||World Food Programme||1963|
|12||CIB||Communist Information Bureau||Moscow||1991 (1947)|
|13||IEO||International Environment Organization||2009|