| Acronym | Meaning |
 | EU | European Union |
| ADI | Acceptable Daily Intake |
| GOS | Geomagnetic Observing System |
| FATS | Firearms Training Simulator |
| AY | Sandia National Laboratory |
| ACO | Atomic Coordinating Office |
| SCM | Solar Constant Monitor |
| RFI | Radio Frequency Interference |
| OCTA | Oxidizing Capacity Of The Troposphere Atmosphere |
| IAG | International Association Of Geodesy |
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