This is changes 1 thru 7 to AR-690-20o Civilian Personnel General Personnel Provisions. Change 7 is dated 3 September 1993, Change 6 is dated 22 June 1990, Change 5 is dated 27 September 1989, Change 4 is dated 15 April 1988, Change 3 is dated 1 October 1985, Change 2 is dated 1 April 1985, and Change 1 is dated 1 September 1983