AR 635-200 is the U.S. Army regulation governing administrative separation from the U.S. Army. AR 635-200 was signed by General George W. Casey, Jr. and took effect on 6 June 2005. AR 635-200 lists separations under two categories: voluntary and involuntary. Involuntary chapters must be initiated by the Soldier's command. Voluntary chapters may requested by the Soldier, but can not be forced to do so by the command.

The involuntary chapters are:

Chapter	Title
5-8	Inability to Perform Prescribed Duties Due to Parenthood
5-13	Personality Disorder
5-17	Other Physical or Mental Conditions
7	Defective Enlistment/Re-enlistment or Extension
9	Alcohol or Other Drug Abuse Rehabilitation Failure
11	Entry Level Performance and Conduct
13	Separation for Unsatisfactory Performance
14-5	Conviction by Civil Court
14-12a	Minor Disciplinary Infractions
14-12b	A Pattern of Misconduct
14-12c	Commission of a Serious Offense
15	Discharge for Homosexual Conduct
18	Failure to Meet Body Fat Standards

The voluntary chapters are:

Chapter	Title
5-3	Secretary Plenary Authority (Once in a lifetime/needs of the Army)
5-16	Early Separation to Further Education
6-3	Separation Because of Dependency or Hardship
8	Separation of Enlisted Women (Pregnancy)
10	Discharge in Lieu of Trial by Court-Martial
16-2	ROTC/OCS Accession
16-4	Non Retention on Active Duty (Soldier’s denied reenlistment)
16-6	Early Separation due to disqualification for duty MOS