| Acronym | Meaning |
| ASP | Advanced Study Program |
| AI | Authorized Inspector |
| HCN | Historical Climatology Network |
| DEBITS | Deposition Of Biogeochemical Important Trace Species |
| ESECA | Energy Supply & Environmental Coordination Act |
| SMSC | Shared-Memory Supercomputer Systems |
| AWWA | American Waterworks Association |
| AADT | Average Annual Weekday Traffic |
| FAGS | Federation Of Astronomical And Geophysical Services |
| UCSD | University Of California At San Diego |