| Acronym | Meaning |
| RAP | Remedial Action Project Or Plan |
| CSR | Class Switch Recombination |
| EPCIA | Evolving Principal Component Innovation Analysis |
| ASD | Active Subslab Soil Depressurization (for Radon Minimization In Buildings) |
| APOMA | American Precision Optics Manufacturers Association |
| GDE | General Dynamic Equation |
| LEP | Local Electron Pair (model For Intra- & Intermol. Interactions) |
| IPM | Integrated Pest Management |
| RMP4 | Restricted Moeller-Plesset Fourth-order (perturbation Theory) |
| CME | Chemically Modified Electrode |