| Acronym | Meaning |
| IERS | International Earth Rotation Service |
| AFAP | Artillery-fired Atomic Projectile |
| MRIS | Media Relations & Information Services |
| ACSE | Association Control Service Element |
| APA | Administrative Procedures Act |
| L-DEO | Lamont-Doherty Earth Observatory |
| BMRC | Bureau Of Meteorology Research Centre |
| AFPS | AWIPS Forecast Preparation System |
| METEOSAT | Meteorological Satellite |
| MAC | Manager's Advisory Council |