| Acronym | Meaning |
| AON | Atmospheric Odd Nitrogen Species Project |
| CBO | Congressional Budget Office |
| CCAR | Colorado Center For Astrodynamics Research |
| EEA | European Environment Agency |
| PAN | Peroxyacyl Nitrates |
| IGPP | Institute Of Geophysics And Planetary Physics |
| P/B | Priority Playback |
| ARCSS | Arctic Systems Science |
| GBDS | GARP Basic Data Set |
| AIS | Affiliate And Immigration Services |