| Acronym | Meaning |
| NRSC | National Remote Sensing Centre |
| LEST | Large Earth-Based Solar Telescope |
| CCRS | Canada Centre For Remote Sensing |
| IAV | International Association Of Volcanology |
| HIRRLS | High Resolution Research Limb Sounder |
| ASIWPCA | Association Of State & Interstate Water Pollution Control Administrators |
| EIA | Electronic Industries Association |
| PFU | Proto Flight Unit |
| GSA | General Services Administration |
| NWSTG | National Weather Service Telecommunications Gateway |