| Acronym | Meaning |
| QAP | Quality Assurance Plan |
| OER | Oxygen Enhancement Ratio |
| NLPS | Nonreactive |
| EOLM | Electro-optical Light Modulation |
| NASN | National Air Sampling Network |
| BOO | Bond Order Orbital |
| GAMP | Global Atmospheric Measurements Program |
| MTB | Mycobacterium Tuberculosis |
| LSDXC | Local-spin-density-exchange-correlation (for Mol. Property) |
| FFCA | Federal Facility Compliance Act |