Directors are appointed by the President of the United States and confirmed by the Senate and serve ten-year terms unless they resign or are let go before their term is up. J. Edgar Hoover, appointed by Calvin Coolidge, was by far the longest-serving director; he held the position from 1935 until his death in 1972 because there was no law limiting service time. The current FBI director is Robert Mueller, who was appointed in 2001 by George W. Bush.
Bureau of Investigation (BOI) Directors (1908–1935)
Federal Bureau of Investigation (FBI) Directors (1935–present)