| Acronym | Meaning |
| PEARL | Prediction Air Quality In Urban And Regional Locations |
| HWSFC | Hazardous Waste Superfund Collection |
| ELLAP | Environmental Lead Laboratory Accreditation Program |
| VGO | Virgin Gas Oil |
| NFE-TB | Nearly-free-electron Tight-bonding (for Electronic Structure) |
| MCL | Maximum Contaminant Level |
| MEPED | Medium Energy Proton & Electron Detector |
| NODP | National Oceanic And Deposition Program |
| NPV | Net Present Value {economics} |
| CNTF | Ciliary Neurotrophic Factor |