| Acronym | Meaning |
| AQSM | Air Quality Simulation Model |
| ACNFS | Advisory Committee On Nuclear Facility Safety |
| WATS | Wide Area Telecommunications Service |
| SAS | Statistical Analysis System |
| MBT | Miscellaneous Budget Transactions |
| TOPS | Transcendental Operating System |
| EM | Electronic Mail |
| H | Henry |
| GDS | Global Dynamics Section |
| CDIS | Command And Data Interface Simulator Unit |