| ACWI | Advisory Committee on Water Information | inactive as of 12/19 |
| BIDS | Business Information Database System | unable to verify |
| EDG | Environmental Dataset Gateway | decommissioned; replaced by Enterprise Data Catalog |
| ESOC | Enterprise Security Operations Center | unable to verify |
| EVENT | Event-based Verification and Evaluation of NWS Gridded Products Tool | unable to verify |
| FIDO | Forest Inventory Data Online | unable to verify |
| HSIP | Homeland Security Infrastructure Program | unable to verify |
| PCA | Principal Cyber Advisor | unable to verify |
| RESL | Radiological and Environmental Sciences Laboratory | unable to verify |
| SOGI | Sexual Orientation and Gender Identity Research Group | unable to verify; likely replaced by SOGISC - Sexual Orientation, Gender Identity, and Sex Characteristics Interest Group |
| SOGW | Subcommittee on Ground Water |
unable to verify (see ACWI above) |
| SOS | Subcommittee on Sedimentation | unable to verify (see ACWI above) |
| SSWD | Subcommittee on Spatial Water Data | unable to verify (see ACWI above) |
| SWRR | Sustainable Water Resources Roundtable | unable to verify (see ACWI above) |
| WRACCW | Water Resources Adaptation to Climate Change Workgroup | unable to verify (see ACWI above) |
| WSFR | Wildlife and Sport Fish Restoration | changed to Office of Conservation Investment (no acronym) |
