| Acronym | Meaning |
 | DOELAP | DOE Laboratory Accreditation Program |
| RDF | Radio Direction Finding |
| AFEL | Advanced Free-electron Laser |
| ARES | Advanced Reentry System |
| APEN | Air Pollution Emissions Notice |
| ACI | Advanced Computing Initiative |
| FT | Identification For An Aviation Terminal Forecast |
| AFP | Apple File Protocol |
| IVVS | Interactive Verification And Visualization System (RTVS) |
| ALAP | As Low As Practical |
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