Before April 21, 2005, the director of central intelligence (DCI) headed both the Intelligence Community and the Central Intelligence Agency. In addition, DCI served as an advisor to the president of the United States on intelligence matters and was the statutory intelligence advisor to the National Security Council (NSC). On April 21, 2005, the director of national intelligence (DNI) took on the roles of head of the Intelligence Community and principal intelligence advisor to the president and the NSC.
The post of DCI was established in 1946 by PresidentHarry S. Truman;[5] it thus predates the establishment of the Central Intelligence Agency (created by the National Security Act of 1947). After the end of World War II, the Office of Strategic Services was dismantled. Its functions were split between the departments of state and war (now defense).[6] Truman soon recognized the inefficiency of this arrangement and created the Central Intelligence Group,[7] which could be considered a smaller precursor to the National Security Council.[8] The following year the National Security Act of 1947 created the Central Intelligence Agency and National Security Council, while formally defining the duties of the director of Central Intelligence. The duties of the DCI had been further defined over the years by tradition, congressional acts, and Executive Orders.
The order of succession determines which official shall act and perform the functions and duties of the director in the event the director dies, resigns, or otherwise becomes unable to perform their duties. The official will serve as acting director.
If the official is already serving in an acting capacity, or otherwise not eligible under the Federal Vacancies Reform Act of 1998, the order skips to the next person in line. However, the president of the United States retains discretion to depart from the list in designating an acting director.[11]
^10 U.S.C.§ 528 Officers serving in certain intelligence positions: military status; exclusion from distribution and strength limitations; pay and allowances
^50 U.S.C.§ 403-6 Appointment of officials responsible for intelligence-related activities