| Acronym | Meaning |
| IDEAL | International Digital Electronic Access Library |
| OE | Office Of Enforcement |
| CI | Compression-ignition (engine) |
| CLC | Coordinated List Of Chemicals |
| GOMS | Gulf Of Mexico Seawater |
| IAC | Immunoaffinity Chromatography |
| ECSPM | Electrochemical Scanning Probe Microscopy |
| SCC | Source Classification Code |
| EMS | Electron Momentum Spectroscopy |
| ESR | Electroslag Refining |