| Acronym | Meaning |
| HFD-B | Hartree-Fock Dispersion-b (potential |
| FAAO | Free-atom Atomic Orbital |
| MBT | Many-body Theory |
| GAO | General Accounting Office |
| RIP | RCRA Implementation Plan |
| HIT | Hazard Information Transmission |
| OSTE | One-step Temper Embrittlement |
| MACS | Modified Atomic Charge Superposition (in Calcns. On Atom-surface Scattering Potentials) |
| CAMAC | Computer Automated Measurement And Control |
| HID | High Intensity Discharge |