Executive Order 12514
Prescribing the Order of Succession of Officers To Act as Secretary of Defense, Secretary of the Army, Secretary of the Navy, and Secretary of the Air Force
This executive order establishes the formal line of succession for acting as Secretary of Defense, Secretary of the Army, Secretary of the Navy, and Secretary of the Air Force in cases of death, disability, or absence. It replaces the 1959 succession order with updated designations and clarifies that succession is temporary without vacating the successor's statutory position.
50 FR 20383