| Acronym | Meaning |
| FPA | Federal Pesticide Act |
| AFA | American Forestry Association |
| JOSS | Joint Office For Science Support |
| SMS | Scalable Modeling System |
| AIF | Atomic Industrial Health Forum |
| SCM | Small Core Memory |
| SSS | Safety And Site Services |
| PRAIRE | Polarization Radar Illinois Rainfall Experiments |
| LLWAS | Low-Level Wind Shear Alert System |
| (ES) | Sporadic E |