| Acronym | Meaning |
| NCEA | National Center For Environmental Assessment |
| TEC | Teo Electron Counting Method (for Complexes |
| HWI | Hazardous Waste Incineration |
| WIPP | Waste Isolation Pilot Plant (for Nuclear Wastes) |
| SRH | Spin-adapted Reduced Hamiltonian |
| EIS | Electron Impact Spectroscopy |
| SDPM | Spin-dependent Photomodulation |
| PITST | Path Integral Transition State Theory |
| MIIT | Materials Interface Interactions Test |
| SIS | Safety Injection System |