| Acronym | Meaning |
| CSA | Chiral Solvating Agent |
| FETI | Fire, Explosion And Toxicity Index |
| CDAF | Continuous Distributed Approximating Function |
| OPIA | Optical Precision Instrument Associates |
| DARC | Dielectric Antireflection Coating |
| NADB | National Air Data Branch (US EPA) |
| MULTIMED | Multimedia Exposure Assessment Model |
| DTA | Direct Toxicity Assessment (of Wastewater Discharges) |
| STOIC | Stratospheric Ozone Intercomparison Campaign |
| ERG | Emergency Response Guidebook |