| BAM | Body and Mind | unable to verify |
| BSC | Board of Scientific Counselors, ATSDR | unable to verify |
| CCDP | Close Call Data Program | changed to PSDP - Precursor Safety Data Program |
| CFM | Census Flows Mapper | unable to verify |
| Climate R&D | Climate Research and Development Program | changed to Ecosystems Land Change Science Program |
| CMI | Critical Materials Institute | changed to Innovation Hub |
| CRIS | Current Research Information System | replaced by REEport - Research, Extension, and Education Project Online Reporting Tool |
| CSEM | Case Studies in Environmental Medicine | archived |
| CSPOS | Computational Statistics and the Production of Official Statistics | changed to DSFS - Data Science for Federal Statistics |
| DSAT | Division of Select Agents and Toxins | unable to verify |
| DTHHS | Division of Toxicology and Human Health Sciences | unable to verify |
| EEB | Envionmental Epidemiology Branch | unable to verify |
| EHSB | Environmental Health Surveillance Branch | unable to verify |
| EMB | Environmental Medicine Branch | unable to verify |
| Epi-X | Epidemic Information Exchange | unable to verify |
| ETB | Environmental Toxicology Branch | unable to verify |
| FedVTE | Federal Virtual Training Environment | replaced by CISA Learning |
| GIAV | Geospatial Integration, Analysis and Visualization Branch | unable to verify |
| HSEES | Hazardous Substances Emergency Events Surveillance | unable to verify (terminated 2009) |
| HTRL | High-Throughput Research Laboratory | changed to ADL - Accelerated Discovery Laboratory |
| ICR | Information Coordination and Reporting Branch | unable to verify |
| IGCE | Independent Government Cost Estimate | merged into buy.gsa.gov/pricing; requires login |
| MFP | Market Facilitation Program | unable to verify |
| MOXIE | Mars Oxygen In-Situ Resource Utilization Experiment | unable to verify |
| MPP-Dairy | Margin Protection Program for Dairy Producers | unable to verify |
| NBCS | Navajo Birth Cohort Study | unable to verify |
| NTSIP | National Toxic Substances Incidents Program | unable to verify |
| REP | Replicating Effective Programs | unable to verify |
| SAMHDA | Substance Abuse and Mental Health Data Archive | merged into samhsa.gov/data |
| SBIP | Sustainable Buildings Implementation Plan | unable to verify |
| SHPPS | School Health Policies and Practices Study | archived |
| SLAITS | State and Local Area Integrated Telephone Survey | archived |
| SNP | Space Nuclear Propulsion | unable to verify |
| SSEC | Smithsonian Science Education Center | certificate error; able to access |
| VEAC | Veterans Experience Action Center | changed to VA 1-on-1: Veteran Assistance Expo |
