| Acronym | Meaning |
| HEC | Human Equivalent Concentration |
| SOS | Southern Oxidant Study |
| EINP | Energy-independent Nonlocal Pseudopotential |
| CZE | Capillary Zone Electrophoresis |
| EPROM | Erasable Programmable Read Only Memory |
| PSDF | Power Systems Development Facility |
| AGA | American Gas Association |
| ECFP | Enhanced Cyan Fluorescent Protein |
| ACERC | Advanced Combustion Engineering Research Center |
| AR | Attributive Risk |