| Acronym | Meaning |
| RWR | Radar Warning Receiver |
| CFI | Center For Inquiry (CSICOP) |
| FRA | Federal Railroad Administration -France (ISO 3166 Trigram) |
| ARL | UK Admiralty Research Laboratory (1921?1977) - U.S. Army Research Laboratory - UIUC Aviation Research Laboratory |
| DREA | Defence Research Establishment Atlantic (obsolete 2002) |
| NMCS | Not Mission Capable Supply (SM&R Code) |
| RQ | Puerto Rico (FIPS 10-4 Territory Code) |
| NTR | Network Time Reference |
| NE | Neon |
| ATAS | Air-To-Air Stinger (missile) |