AR 611-60 governs selection and assignment of Regular Army and Reserve Component personnel to the Defense Attach Service.
View AR 611-60 on armypubs.army.mil
AR 611-60 covers Defense Attach Service assignments, qualifications, screening, training, medical examinations, security requirements, and selection procedures. It requires specific documentation, clearances, examinations, and eligibility standards for officers, warrant officers, and enlisted personnel.
Prior to reporting to DIA for duty, all Soldiers will possess a top secret (TS) sensitive compartmented information (SCI) security clearance based on a current tier 5 investigation. (paragraph 6)
Be proficient in a language of the region for which they are being considered (minimum score of 2/2 on the Defense Language Proficiency Test (DLPT)). (paragraph 1-1)
Personnel designated as DAS DIMAs complete the same training as Regular Army personnel. (paragraph 4)