Chief of Staff of the United States Army Law and Legal Definition

Chief of Staff of the United States Army (CSA) is generally the highest ranking officer in the United States Army. CSA is also a member of the Joint Chiefs of Staff. Prior to 1903, the military head of the Army was the Commanding General of the United States Army.

The CSA reports directly to the Secretary of the Army for army matters and assists in the secretary's external affairs functions including: presenting and enforcing Army policies, plans, and programs. The CSA submits army budgets and projections to the Secretary of Defense, executive branch, and Congress. The CSA also directs the Inspector General to perform inspections and investigations as required. The CSA also presides over the Army Staff and represents Army capabilities, requirements, policy, plans, and programs. Under the authority of the Secretary of the Army, the CSA also designates army personnel and army resources to the commanders of Unified Combatant Commands. He also performs all other functions prescribed under 10 U.S.C. § 3033 or delegates those duties and responsibilities to other officers in his administration in his name. A number of Deputy Chiefs of Staff, such as G-1 Personnel, serves the CSA.

The CSA is nominated by the President and must be confirmed by majority vote from the Senate.