Imperial Navy Transmission, also known as INavTrans was a communication system standard used by Imperial Navy computers. R2-series astromech droids were equipped with software that allowed them to communicate with computers that used the Imperial Navy Transmission standard.
- Star Wars: The Roleplaying Game (First mentioned)
- "The History of R-Series Astromech Droids"—Star Wars Adventure Journal 7
- Star Wars: The Roleplaying Game, Second Edition, Revised and Expanded
- Star Wars: The Roleplaying Game 30th Anniversary Edition