| Acronym | Meaning |
| AQAM | Air Quality Assessment Model |
| DQ-RSPT | Double And Quadruple Excitation Diagrams In Rayleigh-Schroedinger Perturbation Theory |
| SPE | Solid Phase Epitaxy |
| CDW | Charge-density Wave |
| PAB | Pollutant Assessment Branch (US EPA) |
| SARP | Safety Analysis Report For Packaging |
| IRGL | Interagency Regulatory Liaison Group |
| PIAS | Photon-counting Image Acquisition System |
| SLMO | Strictly Localized Molecular Orbital |
| OHMTADS | Oil And Hazardous Materials Technical Assistance Data System |