Imperial Interdicted Space described a secure region within the Elrood sector. It encompassed the Derilyn and Berea systems, extending in the direction of the Torina system. This zone acquired its designation following the Galactic Empire's imposition of martial law on the planet Derilyn, resulting in frequent patrols by Imperial starships. Entry into Imperial Interdicted Space was limited, and civilian ships could only traverse this area with a valid Derilyn Travel Waiver issued by the Imperial Navy.