| Acronym | Meaning |
| PIN | Pesticide Information Network |
| CEC | Commission Of The European Communities |
| NNI | National Nanotechnology Initiative |
| CHEMTREC | Chemical Transportation Emergency Center |
| PTWI | Provisional Tolerable Weekly Intake |
| SEW | Site Electron-density Wave |
| MECS | Manufacturing Energy Consumption Survey (DOE) |
| TPAD | Temperature Programmed Ammonia Desorption |
| CVM-CI | Constrained Variational Method-CI |
| LIGA | Lithographie |