| Acronym | Meaning |
| ATTIC | Alternative Treatment Technology Information Center (US EPA) |
| CONFU | Conference On Fair Use |
| T-GAS | Trace Gas Accounting System |
| TIROS | Television And IR Observation Satellite |
| OEP | Optimized Effective-potential (quantum Method) |
| CIPSI | Configuration Interaction Perturbing A Multiconfigurational Zeroth-order Wave Function Selected Iteratively |
| GCEC | Global Change And Ecological Complexity |
| ICTAC | International Confederation For Thermal Analysis And Calorimetry |
| NODC | National Oceanographic Data Center (Washington |
| SSM | Synthetic Soil Matrix (US EPA) |