| Acronym | Meaning |
 | DSI (+/OR MOD) | Ministry Of Defense |
| FOC | Full Operational Capability |
| CCAA | Canadian Clean Air Act |
| HDLC | High Level Data Link Control |
| NWSTG | National Weather Service Telecommunications Gateway |
| MSOCC | Multisatellite Operations Control Center |
| LF | Low Frequency |
| NOWRAD | National Operational Weather Radar |
| AA | Accountable/activity Area |
| PNA | Pacific/North American |
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