| Acronym | Meaning |
| HRFS | High-resolution Fluorescence Spectroscopy |
| LED | Longitudinal Eddy Current Delay |
| AQG | Air Quality Guideline |
| LCGTO-MCP-LS | Linear Combination Of Gaussian-type Orbitals-model Core Potential-local Spin Density |
| IEV | Independent Event (model In Ion-atom Collisions) |
| NCAP | Noncriteria Air Pollutants |
| HIGFET | Heterostructure Insulated Gate Field Effect Transistor |
| ROM | Regional Oxidant Model |
| M-PCILO | Modified PCILO |
| NCC | National Computing Center |