| Acronym | Meaning |
 | AMC | Appraisal Management Center |
| AO | Abnormal Occurrence |
| ELDO | European Launcher Development Organization |
| ASRC | Atmospheric Sciences Research Center |
| POC | Proof Of Concept |
| AAS | Acid Addition System |
| ESU | Electrostatic Unit |
| AFEAS | Alternate Fluorocarbon Environmental Acceptability Study |
| POD | Probability Of Detection |
| NPC | National Processing Centers |
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