| Acronym | Meaning |
| MOV | Metal-Oxide Varistor |
| IU | International Unit |
| SEDM | State/EPA Data Management |
| IDLH | Immediately Dangerous To Life Or Health |
| CGR | Coliform Growth Response |
| CCRSP | California Cooperative Remote Sensing Project |
| ESFF | Extensible Systematic Force Field |
| FATES | FIRFA And TSCA Enforcement System (now Known As SSTS) |
| ROM | Regional Oxidant Model |
| E-CATS | Electronic Catalog System |