| Acronym | Meaning |
 | HAART | Highly Active Antiretroviral Therapy |
 | LCCM | Linearized Coupled Cluster Method |
 | TOF | Turnover Frequency |
 | CLP | Contract Laboratory Protocols (EPA) |
 | QXRD | Quantitative X-ray Diffraction |
 | VSP | Vertical Seismic Profile |
 | IUPAC | International Union Of Pure And Applied Chemistry |
 | RASA | Regional Aquifer Systems Analysis (program Of USGS) |
 | IADN | Integrated Atmospheric Deposition Network |
 | SAMHSA | Substance Abuse And Mental Health Services Administration |