| Acronym | Meaning |
| PLDS | Pilot Land Data System |
| DECU | Developmental & Educational Communications Unit |
| ACV | Air-cushion Vehicle |
| SPPS | System Plot Package Simulator |
| ASTHO | Association Of State & Territorial Health Officials |
| ASOS | Automated Surface Observing System |
| MILNET | Military Network |
| LDM | Local Data Manager |
| SOAP | Simple Object Access Protocol |
| NASW | National Association Of Science Writers |