| Acronym | Meaning |
| BA | Best Atom (basis Set) |
| CJII | Canadian Joint Implementation Initiative [with Regard To Greenhouse Gas Control] |
| SLPI | Secretory Leukocyte Protease Inhibitor |
| CCAP | Center For Clean Air Policy |
| URG | Umweltrahmengesetz (German Environmental Protection Framework Law) |
| FSCT | Federation Of Societies For Coatings Technology |
| MOSES | Modular Sensor System |
| HEGL | High-energy Gas Laser |
| NTN | National Trends Network |
| CRWQCB | California Regional Water Quality Control Board |