| Acronym | Meaning |
| NEBD | Nonequilibrium Brownian Dynamics |
| PERCI | Photoelectron Resonance Capture Ionization |
| FEMA | Federal Emergency Management Agency |
| EDMR | Electrically Detected Magnetic Resonance |
| PEMC | Pair-excitation Multiconfiguration (type Of Wave Function) |
| IMOMO | Integrated Molecular Orbital And Molecular Orbital |
| VEEH | Variable Electronegativity Extended Hueckel Method |
| NADAP | National Atmospheric Deposition Assessment Program |
| HEM | Human Exposure Model |
| AASHTO | American Association Of State And Highway Transportation Officials |