| Acronym | Meaning |
| AAEE | American Academy Of Environmental Engineers |
| RITS | Radiatively Important Trace Substances |
| EOSIS | EOS Information System |
| ITU | International Telecommunications Union |
| MS | The Company Microsoft |
| NAWPG | National Aviation Weather Products Generator |
| AO | Air Overseas |
| EISA | Extended Industry Standard Architecture |
| MERIT | MERIT |
| LCL | Lifting Consdensation Level |