| Acronym | Meaning |
| ZTD | Zenith Tropospheric Signal Delay |
| CASAC | Clean Air Scientific Advisory Committee |
| RDT&E | Research, Development, Test And Evaluation |
| BIOMASS | Biological Investigations Of Marine Antarctic Systems And Stocks |
| ROSE | Rural Oxidants In The Southern Environment |
| RPG | Radar Products Generator |
| CCC | Canadian Climate Centre |
| DOPLID | Doppler Lidar |
| CBO | Congressional Budget Office |
| MAC | Manager's Advisory Council |