| Acronym | Meaning |
| ALAP | As Low As Practical |
| TDEMSE | Time-dependent Effective Mass Schroedinger Equation |
| MVMA | Motor Vehicle Manufactures Association |
| CMSM | Continuum Multiple-scattering Model |
| EMS | Environmental Management System |
| STARS | Strategic Targeting Activities Reporting System |
| RMAPS | Receptor Model Applied To Patterns In Space |
| SET | Single Electron Tunneling |
| MAAC | Maximum Ambient Air Concentration |
| DRF | Direct Reaction Field (for Intermol. Interactions) |