| ADB | Assimilation Development Branch | unable to verify |
| AVC | Bureau of Arms Control, Verification and Compliance | changed to Bureau of Arms Control, Deterrence, and Stability |
| BRL | Basic Research Laboratory | unable to verify |
| DPAC | Defense Programs Advisory Committee | unable to verify; likely replaced by ACNS - Advisory Committee for National Security |
| ED | Office of Economic Impact and Diversity | changed to EJE - Office of Energy Justice and Equity |
| EDSD | Evaluation and Decision Support Division | changed to WIDS - Weather Informatics and Decision Support Division |
| EVAL | Evaluation Branch | unable to verify |
| GCDC | Global Change Data Center | unable to verify |
| GSD | Global Systems Division | changed to GSL - Global Systems Laboratory |
| INSITE | INtegrated Support for Impacted air-Traffic Environments | unable to verify |
| OCSE | Office of Child Support Enforcement | changed to OCSS - Office of Child Support Services |
| OEID | Office of Economic Impact and Diversity | changed to EJE - Office of Energy Justice and Equity |
| OIS | Office of Immigration Statistics | replaced by OHSS - Office of Homeland Security Statistics |
| OPSO | Office of Physical Sciences-Oncology | changed to PS-ON - Physical Sciences-Oncology Network |
| PPL | Bureau for Policy, Planning and Learning | changed to PLR - Bureau for Planning, Learning, and Resource Management |
| SIG | School Improvement Grants | unable to verify |
| SLC | Smaller Learning Communities | unable to verify |
| VICAR | Violent Crime and Racketeering Section | changed to VCRS - same name |
| WISE | Weather Information Systems Evolution Section | unable to verify |
