23 - Office of the Inspector General
| Stop | Room No. | Office |
| 2301 | 117-W | Inspector General and Deputy Inspector General |
| 2302 | 0116-S | Inspection Division |
| 2303 | 50-E | Administrative Services Division |
| 2304 | 40-E | Business Mgmt. & Procurement Division/Business Management Branch |
| 2305 | 27-E | Diversity and Conflict Prevention |
| 2306 | 18-E | Human Resources Management Division |
| 2307 | 40-E | Business Management and Procurement Division |
| 2308 | 441-E |
Legal Staff/Chief Counsel to the Inspector General |
| 2309 | 9-E | Legal Staff/FOIA |
| 2310 | 5-E | Assistant Inspector General, Policy Development & Resources Management |
| 2311 | 403-E |
Assistant Inspector General, Audit |
| 2313 | 418-E |
Audit/Food, Consumer & Marketing Division |
| 2314 | 418-E |
Audit/Rural Development and Natural Resources Division |
| 2315 | 418-E | Audit/Farm and Foreign Agricultural Division |
| 2316 | 447-E | Audit/Administration and Finance Division |
| 2317 | 507-A | Assistant Inspector General, Investigations |
| 2318 | 425-E | Headquarters Investigations and Protective Operations Division, Program Investigations Division |
| 2319 | 18-E | Human Resources Management Division |
| 2320 | 9-E | Information Technology Division |
| 2321 | 41-W | Assistant Inspector General, Planning & Projects |