| Acronym | Meaning |
| DCA | Washington National Airport |
| ISPRA | N/A |
| PCA | Physical Configuration Audit |
| DXF | Data Exchange Format |
| TCP/IP | Transmission Control Program/Internet Protocol |
| WBRT | Weather Bureau Radio Thoedolite |
| FP | Fixed Price Contract |
| OBS | Organizational Breakdown Structure |
| BASIC | Beginner's All-purpose Symbolic Instruction Code |
| AMU | Atomic Mass Unit |