| Acronym | Meaning |
| PNGV | Partnership For A New Generation Of Vehicles |
| UAQI | Uniform Air Quality Index |
| HAZMAT | Hazardous Materials |
| APGF | Antisymmetrical Product Of Group Functions (a Wave Function) |
| I-TE | International Toxicity Equiv. |
| EEA | European Environment Agency |
| RLM | Reflected Light Microscopy |
| SFIP | Sector Facility Indexing Project |
| SASS | Source Assessment Sampling System |
| OEP | Optimized Effective-potential (quantum Method) |