| Acronym | Meaning |
| PRECP | Processing Emissions By Cloud And Precipitation (DOE Program) |
| AIR CHIEF | Air ClearingHouse For Inventories And Emission Factorspar |
| MCMC | Markov Chain Monte Carlo |
| UVPS | Ultraviolet Photoelectron Spectroscopy |
| CHORTLE | Carbon-hydrogen Correlation From One-dimensional Polarization-transfer Spectra By Least-squares Analysis |
| SAC-CI | Symmetry-adapted Cluster Configuration Interaction (theory For Wave-function Expansion) |
| ATM | Airborne Thematic Mapper |
| WSAP | Weighted Sensitivity Analysis Program |
| HEA | Health And Environmental Assessment |
| MCVP | Metal Chemical Vapor Deposition |