| Acronym | Meaning |
| HCS | Hazard Communication Standard |
| NOC | Nonionic Organic Contaminants |
| SAMBA | Satellite For Measurement Of Background Anisotropies |
| PNN | Probabilistic Neural Network |
| CS | Compton Scattering |
| TDC | Top Dead Center |
| DLAS | Diode Laser Absorption Spectroscopy |
| SMCRA | Surface Mining Control And Reclamation Act |
| USBM | US Bureau Of Mines |
| IPT | Iterated Perturbation Theory |