| Acronym | Meaning |
 | PSIG | Pounds Per Square Inch Gage |
| CAS | Center For Automotive Safety |
| O AND E | Operations And Equipment |
| IDR | Incremental Design Review |
| C/D | Integrated Phase C And Phase D Contract |
| RUC | Rapid Update Cycle |
| GAPS | Billions (109) Of Actions Per Second |
| CAG | Convective Airspace Guidance |
| NRLSI | National Reference Library Of Science And Invention |
| NIGEC | National Institute For Global Environmental Change |
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