| Acronym | Meaning |
| MC-CEPA | Multiconfigurational CEPA |
| VQP | Variable Quadratic Propagator (in Quantum Calcns.) |
| PUF | Polyurethane Foam |
| ECD | Environmental Cleanup Division |
| CARS | Corrective Action Reporting System (now Known As RCRIS) |
| MOVB | MO-valence Bond |
| NERC | North American Electric Reliability Council |
| NGDC | National Geophysical Data Center |
| LOI | Limiting Oxygen Index [of Fire Retardant] |
| MASH | MgO-Al2O3-SiO2-H2O System |