| Acronym | Meaning |
| CAPPPI | Citizen Ambassador Program Of People To People International |
| DAWG | Data Assimilation Working Group |
| ASIWPCA | Association Of State & Interstate Water Pollution Control Administrators |
| PIFM | Practical Improved Flux Method |
| SEM | Scanning Electron Microscope |
| SHEBA | Surface Heat Budget Of The Arctic Ocean |
| AFB | Atmospheric Fluidized Bed |
| NTRANS | Metacode Translator |
| ADR | Alternative Dispute Resolution |
| SLAP | Space Link Access Protocol |