| Acronym | Meaning |
| SLMO | Symmetry-adapted Semilocalized Molecular Orbital |
| SO | Stieltjes Orbitals (for Mol. Photoionization Continua) |
| PML | Polymer Multi Layer |
| PMN | Premanufacture Notice |
| GLISP | Great Lakes International Surveillance Plan |
| NMFS | National Marine Fisheries Service (of NOAA) |
| NPCR | Nonlinear Principal Components Regression |
| APCD | Air Pollution Control Device |
| BDCT | Best Demonstrated Control Technology |
| CAMDS | Chemical Agent Munitions Disposal System |