| Acronym | Meaning |
| PIRI | Photoinduced Rydberg Ionization |
| AEROS | Aerometric And Emissions Reporting System |
| ACS | American Chemical Society |
| TFC | Thin Film Composite Membrane |
| ITRC | Interstate Technology And Regulatory Cooperation Working Group |
| MDMI | Monodisperse Dried Microparticulate Injector |
| RPC | Reversed-phase Chromatography |
| AED | Auger Electron Diffraction |
| NEJAC | National Environmental Justice Advisory Council |
| PES | Photoelectron Spectroscopy |