| Acronym | Meaning |
| APCA | Air Pollution Control Association |
| IAP | Inhibitor Of Apoptosis |
| GBF | Gibbs-Bogolyubov-Feynman (variational Principle) |
| MIDAS | Model Of Ion Dynamics And Acidification Of Soil |
| RSKERL | Robert S. Kerr Environmental Research Laboratory |
| VAP | Valence Alternation Pair (bonding Configuration Model) |
| ASW | Acoustic Surface Wave Measurements |
| HCA | Hazardous Communication Act |
| FETAX | Frog Embryo Teratogenesis Assay-Xenopus |
| IMSD | Information Management And Services Division |