| Acronym | Meaning |
| N2H4 | Hydrazine |
| S/L | Shop/Laboratory |
| RDT&E | Research, Development, Test And Evaluation |
| PSF | Processing And Staging Facility (SRB) |
| I | D&CA Inverter Distribution And Control Assembly |
| IPS | IRV Isotope Reentry Vehicle |
| CRR | Computer Run Report |
| ESI | Electrical System Integration |
| DSAD | Data Systems And Analysis Directorate (JSC) |
| NC | Normally Closed |