| Acronym | Meaning |
| SULEV | Super Low Emission Vehicle |
| MPLS | Modified Partial Least Squares |
| CSF | Configuration State Function (part Of Ci Wave Function) |
| OTE | Optically Transparent Electrode |
| ATD | Atmospheric Technology Division |
| ZPC | Zero-point (energy) Corrections |
| SEDM | Selective Excitation Double Moessbauer |
| DEPC | Diethyl Pyrocarbonate |
| ANPRM | Advance Notice Of Proposed Rulemaking |
| ECNIMS | Electron Capture Negative Ionization Mass Spectrometry |