| Acronym | Meaning |
| OPPTS | Office For Prevention |
| AIHC | American Industrial Health Council |
| TWSM | Two-way Shape Memory |
| TDPT | Time-dependent Perturbation Theory |
| PTA | Pulse Thermal Analysis |
| APELL | Awareness And Preparedness For Emergencies At Local Level |
| GOE | Gaussian Orthogonal Ensemble (of Random Matrixes In Quantum Chaoticity Study In At. And Nuclear Energy Levels) |
| EAAPS | Electron-excited Auger-electron Appearance Potential Spectroscopy |
| CAPCOA | California Air Pollution Control Officers Association |
| PML | Promyelocytic Leukemia |