ARMY DIR 2019-27 governs direct appointments of officers up to the grade of colonel, other than special branches.
View ARMY DIR 2019-27 on armypubs.army.mil
It establishes entry grade credit rules based on prior commissioned service and constructive service credit. It also addresses grade-above-major boards, age and service availability, mandatory removal dates, and initial military training.
Applies to: This directive applies to the Regular Army, Army National Guard/Army National Guard of the United States, and U.S. Army Reserve.
The amount of entry grade credit will equal the sum of the prior commissioned service credit and the constructive service credit granted. (paragraph 2)
A period of time will be counted only once when calculating entry grade credit. (paragraph 2)
No less than half-day credit for each day of such service credit will be awarded for prior commissioned service in a field other than the field or specialty for which the person is currently being appointed. (paragraph 7)
Constructive service credit is awarded when commissioned service begins after the additional education, training, or experience required for appointment, designation, or assignment in a professional specialty or a specifically designated field is obtained. (paragraph 8)
No person may be appointed as a commissioned officer above the grade of major as a Regular Army or reserve component officer unless recommended for appointment by a board of officers convened on my behalf pursuant to my instructions. (paragraph 9)