| Acronym | Meaning |
 | ATSD | Assistant To The Secretary Of Defense |
| PAR | Performance Assurance Requirements |
| HP | Horse Power |
| DECU | Developmental & Educational Communications Unit |
| ELI | Environmental Law Institute |
| RUCS | Rapid Update Cycle Surface |
| AFA | American Forestry Association |
| ESD | Environmental Satellite Data |
| EH | Oxidation Potential |
| ELF | Extremely Low Frequency |
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