| Acronym | Meaning |
 | AR | Administrative Requirement |
| PF | Performance Factor |
| FORTELL | Not An Acronym |
| GCM | General Circulation Model |
| ATSR | Along Track Scanning Radiometer |
| PRC | People's Republic Of China |
| PMS | Performance Measurement System |
| NEHRP | National Earthquake Hazard Reduction Program |
| TA | Technology Applications |
| AEEN | Agence Europeenne Pour L'Energie Nucleaire |
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