| Acronym | Meaning |
 | EO | Ethylene Oxide |
| EM | Evaluation Model |
| NODS | NASA Ocean Data System |
| BWI | Baltimore-Washington International Airport |
| ACV | Air-cushion Vehicle |
| EDP | Electronic Data Processing |
| MCC | Mission Control Center |
| DHR | Director Of Human Resources |
| CCTM | Community Chemistry Transport Model |
| EOL | Earth Observing Laboratory (formerly ATD) |
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