| Acronym | Meaning |
| GIIS | General Instrument Interface Specification |
| ICG | International Coordination Group |
| AC | Alternating Current |
| FICA | Federal Insurance Contributions Act |
| ADP | Automatic Data Processing |
| VLF | Very Low Frequency |
| RFP | Request For Proposal |
| DCG | Derived Air Concentration Guide For Uncontrolled Areas |
| RTN | Regional Telecommunications Network |
| ISPAN | Information Stream Project For AWIPS NOAAport |