| Acronym | Meaning |
| IITA | Information Infrastructure Technology And Applications |
| SPOT | Systeme Pour L'Observation De La Terre (France) |
| SPC | Small Particle Count (or Counter) |
| AQSM | Air Quality Simulation Model |
| RAM | Random Access Memory |
| C&DH | Command And Data Handling |
| AIRFA | American Indian Religious Freedom Act |
| ESIS | Earth Science Information System |
| DISA | Defense Information Systems Agency |
| DQ | Director Of Quality |