| Acronym | Meaning |
| LAC | Liquid Adsorption Chromatography |
| CEMS | Conversion Electron Moessbauer Spectroscopy |
| TETS | Totally Enclosed Treatment Systems |
| RCCSD | (partially) Restricted CCSD |
| OCEPA | Office Of Communications |
| TCM | Transport Control Measures |
| WRAQS | Western Regional Air Quality Study |
| CCDZP | Correlation-consistent Double-zeta (plus) Polarization (basis Set) |
| OPDIN | Ocean Pollution Data And Information Network |
| BVOC | Biogenic Volatile Organic Compounds |