| Acronym | Meaning |
| FTE | Full-time Equivalent |
| ANSI | American National Standards Institute |
| OPAL | Opacity Project At Livermore |
| FIVRS | Financial Information Variance Reporting System |
| PPTV | Parts Per Trillion (by Volume) |
| PMS | Platform Management System |
| ATR | Attenuated Total Reflection |
| IFLOWS | Integrated Flood Observing And Warning System |
| ICD | Interface Control Document |
| CADD | Computer-Aided Design And Drafting |