| Acronym | Meaning |
| OUASS | Omega Upper Atmospheric Sounding Systems |
| DSSG | Defense Science Study Group |
| DTC | Distance Traveled Count |
| EIA | Energy Information Administration |
| R-Z RELATIONSHIP | R = Precipitation Rate |
| AIS | Accumulator Injection System |
| ERDIP | Experimental R & D Incentives Program |
| ALI | Annual Limit On Intake |
| NHC | National Hurricane Center |
| STF | Short-Term Forecast |