| Acronym | Meaning |
| IMB | Information Management Branch |
| TGCE | Thermal Gradient Capillary Electrophoresis |
| EM | Enriched Mantle |
| CCME | Canadian Council Of Ministers Of The Environment |
| FMIT | Fusion Materials Irradiation Test |
| ARCS | Alternative Remedial Contracting Strategy (US EPA) |
| EPEC | Enteropathogenic Escherichia Coli |
| GSJ | Geological Survey Of Japan |
| OCEC | Open-channel Electrochromatography |
| CLU-IN | Clean-Up Information Bulletin Board System (formerly OSWER-BBS) |