AR 614-200, Chapter 9:

Soldiers may volunteer or be nominated provided the following criteria are met. Soldiers must—

a. Be high school graduates or have a GED equivalent.

b. Have physical profile serial code “A,” with allowance of “2” for eyes.

c. Be U.S. citizens (by birth or naturalization).

d. Have or be able to obtain applicable security clearances that are required for the position.

e. Have no record of conviction by court–martial or time lost to be made good under 10 USC 972 during current enlistment or last three years, whichever is longer.

f. Have no record of civil conviction, except for minor offenses that do not disqualify for TS security clearance under AR 380–67.

g. Have no personal habits or character traits that are questionable from a security standpoint, including financial irresponsibility, foreign holdings or interest, heavy drinking, drug abuse, gambling, emotional or mental instability, and so forth. Soldiers who are declared rehabilitation successes under the ASAP are not included.

h. Must have a minimum GT score of 100.

i. Must meet body composition requirements in AR 600–9.