| Acronym | Meaning |
| PCA | Physical Configuration Audit |
| UEDS | Unidata Experimental Data Service |
| ESTEC | European Space Research And Space Technology Centre |
| SEC | Securities & Exchange Commission |
| FGCMS | Fast GC / MS = Fast Gas Chromatography / Mass Spectrometry |
| DOD | Department Of Defense |
| BIP | Balloon-borne (instrument) Platform |
| FPD | Facilities Planning And Design |
| AFS | Auxiliary Feedwater System |
| CAP | Civil Air Patrol |