| CAIS | Childhood Agricultural Injury Survey | site archived 11/21 |
| CECA | Center of Excellence on Children in Adversity | unable to verify |
| DHAP | Division of HIV/AIDS Prevention | changed to Division of HIV Prevention (DAP) |
| DSNetwork | Detention Services Network | unable to verify |
| MESA | Multi-Ethnic Study of Atherosclerosis Air Study | unable to verify |
| NCEAI | National Council for Expanding American Innovation | changed to Council for Inclusive Innovation (CI2) |
| NCHHSTP | National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention | changed to National Center for HIV, Viral Hepatitis, STD, and TB Prevention (same acronym) |
| NSID | National Security Investigations Division | changed to National Security Division (NSD) |
| OES | Occupational Employment Statistics | changed to Occupational Employment and Wage Statistics (OEWS) |
| OTC | Operational Technology and Cyber Division | changed to Cyber and Operational Technology (no acronym) |
| SHP | Secretary's Honors Program | unable to verify |
| UAS | Unmanned Aircraft Systems Program | changed to Uncrewed Systems Research Transition Office (UxSRTO) |
