| Acronym | Meaning |
| OSWER BBS | OSWER Electronic Bulletin Board System (see CLU-IN) |
| EGM | Electron Gas Model |
| SBIR | Small Business Innovative Research Program |
| STIG | Steam-injected Gas Turbines |
| AFV | Alternatively Fueled Vehicle |
| SSRM | Scanning Spreading Resistance Microscopy |
| PHE | Potentially Harmful Element |
| IEL | Intraepithelial Lymphocyte |
| ACATS | Airborne Chromatograph For Atmospheric Trace Species |
| BMP | Bone Morphogenetic Proteins |