| Acronym | Meaning |
| NEM | NAAQS Exposure Model |
| HRAC | Herbicide Resistance Action Committee |
| RADREM | Radioactivity Research And Environmental Monitoring Committee |
| GLF | Generalized Laguerre Function |
| AI | Agpaitic Index [represents The (Na2O + K2O)/Al2O3 Ratio] |
| ACMP | Advisory Committee On Marine Pollution (ICES) |
| IESS | Inelastic Electron Scattering Spectroscopy |
| TEWI | Total Equivalent Warming Impact |
| ULPA | Ultra Low Penetration Air |
| RCIS | Resource Center Information System |