| Acronym | Meaning |
| CNG | Compressed Natural Gas |
| AMDQW | Asymmetric Modulation Doped Quantum Well |
| AMTIC | Ambient Monitoring Technology Information Center |
| HEV | Hybrid Electric Vehicle |
| VPD | Vapor Phase Decomposition |
| XAES | X-ray Excited Auger Electron Spectroscopy |
| EDA | Electron Donor-acceptor |
| NMOG | Non-Methane Organic Gases |
| TOG | Total Organic Gas |
| OCBSE | Orthogonality Constrained Basis Set Expansion Prodedure |