| Secretary of the Army |
| Chief of Staff, Army |
| Under secretary of the Army |
| Vice Chief of Staff, Army |
| Assistant Secretary of the Army (Acquisition, Logistics, and Technology) |
| Assistant Secretary of the Army (Civil Works) |
| Assistant Secretary of the Army (Financial Management and Comptroller) |
| Assistant Secretary of the Army (Installations, Energy, and Environment) |
| Assistant Secretary of the Army (Manpower and Reserve Affairs) |
| Office of the General Counsel |
| Administrative Assistant to the Secretary of the Army |
| Deputy Under Secretary of the Army |
| Chief Information Officer/G-6 |
| The Inspector General |
| The Auditor General |
| Executive Director, Army National Military Cemeteries |
| Chief of Legislative Liaison |
| Chief of Public Affairs |
| Director, Small Business Programs |
| Chief, National Guard Bureau |
| Directory of the Army Staff |
| Sergeant Major of the Army |
| Deputy Chief of Staff, G-1 |
| Deputy Chief of Staff, G-2 |
| Deputy Chief of Staff, G-3/5/7 |
| Deputy Chief of Staff, G-4 |
| Deputy Chief of Staff, G-8 |
| Deputy Chief of Staff, G-9 |
| Chief, Army Reserve |
| Chief of Engineers |
| The Surgeon General |
| The Judge Advocate General |
| Chief of Chaplains |
| Provost Marshal General |
| Other Principal Officials |
| Collection of Principal Official Guidance |
| Principal Official Guidance User's Guide |