Basic (521) Enlisted Personnel

This classification will be used to designate enlisted men in the following categories:
(1) Personnel who are undergoing basic training.
(2) Personnel who have completed basic training and are undergoing unit training, but are not yet qualified for an MOS.
(3) Personnel who have proved unqualified in an MOS previously held and are reassigned for training in another speciality.
Enlisted men classified under this number will be constantly observed and tested to determine their potentialities, and this knowledge will be utilized to develop these individuals into military occupational specialists.