| Acronym | Meaning |
| ATC | Air Traffic Control |
| ACGIH | American Conference Of Governmental Industrial Hygienists |
| DCTN | Defense Commercial Telecommunications Network |
| HDS | High-resolution Data Service |
| IUTAM | International Union Of Theoretical And Applied Mechanics |
| GTC | Gigatons Of Carbon |
| WERC | World Environment And Resources Council |
| FOCAL | Programme Francais Ocean Et Climat Dans D'Atlantique Equatorial |
| PVC | Polyvinyl Chloride |
| NAE | National Academy Of Engineering |