| Acronym | Meaning |
| ADR | Alternative Dispute Resolution |
| AEO | Atomic Energy Organization |
| STEP | Stratosphere-Troposphere Exchange Project |
| FSS | Facilities Support Services |
| ISBN | International Standard Book Number |
| EXPRESSO | EXPeriment For REgional Sources And Sinks Of Oxidants |
| AA | Access Authorization |
| PRUDENCE | Prediction Of Regional Scenerios And Uncertainties For Defining European Climate Change Risks And Effects |
| DSA | Directory System Agent |
| PFU | Proto Flight Unit |