(c) Joint program means the cooperative program established by the Community and the United States and carried out in accordance with the provisions of an agreement for cooperation entered into pursuant of the Atomic Energy Act of 1954 to bring into operation in the territory of the members of the Community power plants using nuclear reactors of types selected by the Commission and the Community, having as a goal a total installed capacity of approximately 1000000 kilowatts of electricity by December 31, 1963, except that two reactors may be selected to be in operation by December 31, 1965.