| Acronym | Meaning |
| RFA | Regulatory Flexibility Act |
| IRM | Isothermal Remanent Magnetization |
| LDS | Linear Dichroism Spectrometry |
| OPP | Office Of Pesticide Programs |
| NEROS | Northeast Regional Oxidant Study |
| PD | Photoelectron Diffraction |
| ALOTS | Airborne Lightweight Optical Tracking System |
| VRM | Viscous Remanent Magnetization |
| AQS | Air Quality Standard |
| EMF | Electromotive Force |