| Acronym | Meaning |
 | DCAA | Defense Contract Audit Agency |
| GTCP | Global Tropospheric Chemistry Program |
| HCN | Historical Climatology Network |
| AW | Annual Worth |
| BIATEX | Part Of EUROTRAC |
| PA | Payload Accommodations |
| CAAC | Civil Aviation Administration Of China |
| BBC | British Broadcasting Corporation |
| TOPCAT | A Clear Air Turbulence Measurement Program |
| AP | Administrative Procedure |
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