| Name |
Formal Name |
Headquarters |
Established |
Aim |
Members |
| CAN |
Andean Community of Nations (formerly known as the Andean Group (AG), the Andean Parliament, and most recently as the Andean Common Market (Ancom) |
|
26 May 1969; effective - 16 October 1969. Present name established 1 October 1992 |
to promote harmonious development through economic integration |
5 |
| CARICOM |
Caribbean Community and Common Market |
|
4 July 1973; effective - 1 August 1973 |
to promote economic integration and development, especially among the less developed countries |
15, 4 associate members + 8 observers |
| CDB |
Caribbean Development Bank |
|
18 October 1969; effective - 26 January 1970 |
to promote economic development and cooperation |
20 regional; nonregional 5 |
| CACM |
Central American Common Market |
|
13 December 1960, collapsed in 1969, reinstated in 1991 |
to promote establishment of a Central American Common Market |
5 |
| CEI |
Central European Initiative (evolved from the Quadrilateral Initiative and the Hexagonal Initiative) |
|
11 November 1989 as the Quadrilateral Initiative, 27 July 1991 became the Hexagonal Initiative, NA July 1992 its present name was adopted |
to form an economic and political cooperation group for the region between the Adriatic and the Baltic Seas |
17 |
| CP |
Colombo Plan |
|
NA May 1950 proposal was adopted; 1 July 1951 commenced full operations |
to promote economic and social development in Asia and the Pacific |
25 |
| C |
Commonwealth of Nations |
London |
31 December 1931 |
to foster multinational cooperation and assistance, as a voluntary association that evolved from the British Empire |
53 (on 7 December 2003 Zimbabwe withdrew its membership from the Commonwealth) |
| CIS |
Commonwealth of Independent States |
|
8 December 1991; effective - 21 December 1991 |
to coordinate intercommonwealth relations and to provide a mechanism for the orderly dissolution of the USSR |
12 |
| CE |
Council of Europe |
|
5 May 1949; effective - 3 August 1949 |
to promote increased unity and quality of life in Europe |
45 + 6 observers |
| CBSS |
Council of the Baltic Sea States |
|
6 March 1992 |
to promote cooperation among the Baltic Sea states in the areas of aid to new democratic institutions, economic development, humanitarian aid, energy and the environment, cultural programs and education, and transportation and communication |
12 |
| CEMAC |
Monetary and Economic Community of Central Africa (was formerly the Central African Customs and Economic Union - UDEAC) |
|
8 December 1964; effective - 1 January 1966 |
to promote the establishment of a Central African Common Market |
6: Cameroon, Central African Republic, Chad, Republic of the Congo, Equatorial Guinea, Gabon |
| CEPGL (acronym from: Communaute Economique des Pays des Grands Lacs) |
Economic Community of the Great Lakes Countries |
|
20 September 1976 |
to promote regional economic cooperation and integration |
3: Burundi, Democratic Republic of the Congo, Rwanda |
| CERN (acronym retained from the predecessor organization Conseil Europeenne pour la Recherche Nucleaire) |
European Organization for Nuclear Research |
|
1 July 1953; effective - 29 September 1954 |
to foster nuclear research for peaceful purposes only |
20 + 3 observers |