The Communications Satellite Corporation (Comsat) was formed by the United States in 1962 to establish a global communications satellite system. This paper examines the relations between Comsat and the government agencies involved in shaping United States communications satellite policy during the negotiations for the Interim Intelsat Agreements. Following an explanation (with diagrams) of a conceptual framework for interdependence and coordination in decision making, the paper examines events of 1962 through 1964 relating to the establishment of Comsat; the development of negotiations between Comsat, the United States government, and representatives of European countries, the United Kingdom, and Canada; and the establishment of the Interim Intelsat Agreements. The paper shows how Comsat, which originally proposed an organizational model that would have given the United States government and foreign participants a limited role in management of the system, was forced to accept a multilateral organization with somewhat greater foreign and United States government involvement. It also shows how the cooperation that evolved between Comsat and government agencies led to the success of the Interim Intelsat Agreements. (GW)