| Acronym | Meaning |
| USAN | US Adopted Names (for Drugs) |
| OC | Office Of The Comptroller |
| WET | Waste Extraction Test |
| VMS | Vehicle Management System |
| MTFE | Mercury Thin-film Electrode |
| HIRIS | High Resolution Imaging Spectrometer |
| UDDS | Urban Dynamometer Driving Schedule |
| CYCLOPS | Cyclically Ordered Phase Sequence |
| PSM | Process Safety Management |
| NF | Nuclear Factor |