| Acronym | Meaning |
| FIS | Financial Information System |
| FO | Field Office |
| A&C | Abatement & Control |
| ODE | Ordinary Differential Equation |
| AOD | Argon-oxygen Decarbonization |
| TING | Thermosphere-Ionosphere Nested Grid Model |
| ICFD | Institute For Computational Fluid Dynamics |
| FICA | Federal Insurance Contributions Act |
| ASSIST | ADPE System Sizing Tool |
| LAI | Leaf Area Index |