(a) There is an Under Secretary of the Army, appointed from civilian life by the President, by and with the advice and consent of the Senate.
(b) The Under Secretary shall perform such duties and exercise such powers as the Secretary of the Army may prescribe.
Structure US Code
CHAPTER 703— DEPARTMENT OF THE ARMY
§ 7012. Department of the Army: seal
§ 7014. Office of the Secretary of the Army
§ 7015. Under Secretary of the Army
§ 7016. Assistant Secretaries of the Army
§ 7017. Secretary of the Army: successors to duties
§ 7018. Administrative Assistant
§ 7021. Army Reserve Forces Policy Committee