| Acronym | Meaning |
| IWG | Implementation Working Group |
| IHOP 2002 | International H2O Project 2002 |
| PEL | Photo-electron Layer |
| TOPEX/POSEIDON | Ocean Topography Experiment |
| EMCOM | Environmental Management Career Opportunities For Minorities |
| DPSOL | Du Pont Savannah River Operations Logbook |
| LL | Lincoln Laboratories |
| ERDA | Energy Research And Development Administration |
| IOP | Intensive Observation Period |
| ALA-O | Delta-aminolevulinic Acid Dehydrates |