| Acronym | Meaning |
![](file.png) | MAC | Maximum Allowable Concentration |
![](file.png) | SSL | System Software Loader |
![](file.png) | ETS | Energy Transfer System |
![](file.png) | PPIL | Priced Provisioned Item List |
![](file.png) | OSTP | Orbiting System Test Plan |
![](file.png) | PAYCOM | Payload Command |
![](file.png) | NOZ | Nozzle |
![](file.png) | OPDAR | OPtical Detection And Ranging |
![](file.png) | CCP | Configuration Change Point |
![](file.png) | SIS | Software Integrated Schedule |