| Acronym | Meaning |
| DTF3.1 | Same As DTF3 |
| FCC | Federal Communications Commission |
| EMEX | Equatorial Monsoon Experiment |
| FR | Federal Register |
| PAC | Polar Atmospheric Chemistry |
| FEMA | Federal Emergency Management Agency |
| UNAM | Universidad Autonoma De Mexico |
| METEOSAT | Meteorological Satellite |
| EDF/ DER | Electricit? De France/ Direccion Des Etudes Et Recherche |
| PDM | Pulse Duration Modulation |