| Acronym | Meaning |
| E-CATS | Electronic Catalog System |
| ICCVAM | US Interagency Coordination Committee On The Validation Of Alternative Methods |
| UNO-CAS | Unrestricted Natural Orbital-complete Active Space |
| OER | Oxygen Enhancement Ratio |
| VASS | Variable Angle Sampling Spinning |
| STARR | Staged Approach To Risk Reduction |
| IPT | Iterated Perturbation Theory |
| GCE | Ground-based Cloud Experiment |
| DSL | Domestic Substance List |
| QCT | Quasiclassical Trajectory (method For Mol. Collision Calcns.) |