| Acronym | Meaning |
| E | Epsilon |
| ISTP | International Solar Terrestrial Program |
| HL | Half Life |
| DETEC | Defense Technology Evaluation Code |
| OPPE | Office Of Policy |
| INSTAAR | Institute For Arctic And Alpine Research |
| NWSOP | National Winter Storms Operations Plan |
| OAR | Oceanic And Atmospheric Research |
| EMP | Electromagnetic Pulse |
| RPC | Remote Procedure Call |