| Acronym | Meaning |
 | RAS | Retrospective Analysis System |
| DCLS | Data Collection Location System |
| IRIS | Incorporated Research Institutions For Seismology |
| TOM | Trunk Operations Monitor |
| OMEGA | Operational And Prediction Multi-scale Environmental Model With Grid Adaptivity |
| PPI | Plan-postition Indicator |
| APT | Automatic Picture Transmission |
| CDA | Command And Data Acquisition |
| GGNS | Grand Gulf Nuclear Station |
| CCCS | Change And Configuration Control System |
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