| Acronym | Meaning |
 | AGR | Advanced Gas-cooled Reactor |
| HB | Hard Black |
| ESNET | Energy Sciences Network |
| GAC | Global Atmospheric Chemistry |
| VORTAC | Very High Frequency (omnirange) TACAN (tactical Air Navigation System) |
| NAOS | North American Observing System |
| EAR | Export Administration Regulations |
| ABHX | Air Blast Heat Exchanger |
| IWGMFS | International Working Group On Magnetic Field Satellites |
| PEM | Particle Environment Monitor |
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