| Acronym | Meaning |
 | SAO | Semiannual Oscillation |
| NAPAP | National Acid Precipitation Assessment Program |
| NEAQS | New England Air Quality Study |
| OFDA | Office Of Foreign Disaster Assistance |
| MM90 | N/A |
| STEP | Solar Terrestrial Energy Program |
| DIS | Defense Intelligence Service |
| HSRP | High Speed Research Program |
| FEP | Front End Processor |
| AGGG | Advisory Group On Greenhouse Gases |
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