| Acronym | Meaning |
| CARRI | Computerized Assessment Of Relative Risk Impacts |
| NCLI | National Chemical Laboratory For Industry (Japan) |
| HPI | Hydrocarbon Processing Industry |
| OEP-SIC | Optimized Effective Potential Self-interaction Correction |
| PDB | Protein Data Bank |
| UCM | Unresolved Complex Mixt. |
| UTL | Upper Tolerance Limit |
| TPSR | Temp.-programmed Surface Reaction |
| WWT | Wastewater Treatment |
| FERC | Federal Energy Regulatory Commission |