| Acronym | Meaning |
| ECA | Engineering Change Analysis |
| HMCF | Hypergolic Maintenance And Checkout Facility |
| SPAF | Simulation Processor And Formatter |
| PRSD | Power Reactant Storage And Distribution |
| CP | Chemically Pure |
| SDD | Software DescriPtion Document |
| MNA | B |
| PGE | Purge |
| TRS | Teleoperator Retrieval System |
| DPP | Data Processing Software System |