| Acronym | Meaning |
| SETS | Superfund Enforcement Tracking System |
| RFD | Reference Dose |
| TST | Transition State Theory |
| LIESA | Laser Induced Emission Spectral Analysis |
| ASA | Alkenylsuccinic Anhydride |
| MRDL | Maximum Residual Disinfectant Level |
| ZPVE | Zero-point Vibrational Energy |
| GCHAZ | Grain-coarsened Heat-affected Zone |
| IEM | Independent Electron Model (for Ionization In Ion-atom Collisions) |
| TMCP | Thermomech. Control Process |