Section 901 is an Educational Assistance Test Program created by the Department of Defense Authorization Act of 1981 (Public Law 96-342) to encourage enlistment and reenlistment in the Armed Forces. Benefits are available to individuals who entered on active duty after September 30, 1980, and before October 1, 1981 (or before October 1, 1982, if entry was under a delayed enlistment contract signed between September 30, 1980, and October 1, 1981).

Pamphlet: http://www.gibill.va.gov/pamphlets/901/901_Pamphlet.pdf