| Acronym | Meaning |
| ISTO | Industry Standards And Technology Organization |
| ELF | Electron Localization Function |
| NAL | No Action Level |
| CCAP | Center For Clean Air Policy |
| LVH | Left Ventricular Hypertrophy |
| RFA | Regulatory Flexibility Analysis |
| ABA | Acid-base Account [related To Acid-forming Potential] |
| USPIO | Ultrasmall Superparamagnetic Iron Oxide |
| PVD | Physical Vapor Deposition |
| CA | Corrective Action |