| Acronym | Meaning |
 | NDC | National Data Center |
| PMS | Particle Measuring System |
| ALPA | Airline Pilots Association |
| TDM | Time Division Multiplex |
| APL | Average Power Laser |
| PEM | Pacific Exploratory Measurements |
| VOR | VHF Omnidirectional Range |
| MLI | Multiple Layer Insulation |
| AL | Albuquerque Field Office |
| NEHRP | National Earthquake Hazard Reduction Program |
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