Rwanda was admitted to UN membership on 18 September 1962, and is a member of ECA and all of the non-regional specialized agencies except IAEA and IMO. It is also a member of the African Development Bank, G-77, and AU. Rwanda is a signatory of the Law of the Sea and a member of the WTO.
In 1976, Rwanda joined Burundi and Zaire in the Economic Community of the Great Lakes Countries, formed to develop the economic potential of the basin of Lakes Kivu and Tanganyika; its headquarters are in Gisenyi. In 1977, Rwanda joined Burundi and Tanzania in forming an economic community for the management and development of the Kagera River Basin. Uganda became a part of the community in 1980. Its headquarters are in Kigali.