| Acronym | Meaning |
| RFA | RCRA Facility Assessment |
| EIFS | Exterior Insulation And Finish Systems [coatings] |
| PDF | Probability-distribution Function |
| SARA | Saturates |
| DSPB | Distorted-wave Strong-potential Born (approxn.) |
| UNO-CAS | Unrestricted Natural Orbital-complete Active Space |
| EOM | Equations Of Motion Method (green's Function) |
| PAB | Pollutant Assessment Branch (US EPA) |
| CCSEM | Computer-controlled Scanning Electron Microscopy |
| NHOMO | Next Highest Occupied Molecular Orbital |