| Acronym | Meaning |
| ACSI | Accelerated Strategic Computing Initiative (for Fusion Reactor) |
| OCEPA | Office Of Communications |
| DOAS | Differential Optical Absorption Spectroscopy |
| CDA | Cosmic Dust Analyzer |
| NCC | National Computing Center |
| DLD | Decoupled L-dominant Method (in Inelastic-scattering Calcns. |
| AFSB | Anaerobic Fluidized Sludge Blanket |
| DCEN | Direct Current Electrode Negative |
| ATTF | Air Toxics Task Force |
| SRA | Society For Risk Analysis |