The Montgomery GI Bill® - Active Duty program provides up to 36 months of education benefits. These benefits may be used for degree and certificate programs, apprenticeship/on-the-job training and correspondence courses. Vocational flight training is approved from September 30, 1990. Remedial, deficiency, and refresher courses may be approved under certain circumstances. Generally, benefits are payable for 10 years following your release from active duty.