| Acronym | Meaning |
 | IVC | Intervehicular Communications |
| REGEN | Regenerate |
| GUID | Guidance |
| CPCEI | Computer Program Contract End Item |
| DCS | Design Communication System |
| OSF | Office Of Space Flight (now OSTS) |
| VV | Vent Valve |
| PSIS | Pounds Per Square Inch Sealed |
| SSS | Stage Separation Subsystem |
| SLP | ERNO Spacelab Program Office |
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