| Acronym | Meaning |
| AEROS | Aerometric And Emissions Reporting System |
| ZAP | Zone Axis Pattern |
| HMM | Hazardous Materials Management |
| ORO | Office Of Regional Operations |
| LCAO CO | Linear Combination Of Atomic Orbitals Crystal Orbital |
| MP2 | Moeller-Plesset Second-order Perturbation Theory |
| OSW | US Office Of Saline Water |
| CO | Crystal Orbital |
| RITE | Research Institute Of Innovative Technology For The Earth (Japan) |
| GEK | Geomagnetic Electrokinetograph |