Imperial Sector Command, often shortened to Sector Command, functioned as a command structure within the Galactic Empire while it was engaged in the Galactic Civil War opposing the Alliance to Restore the Republic. A component of Sector Command was Subsector Command. During the early rebellion against the Galactic Empire, Commander Brom Titus, Captain Brunson, as well as Captain Slavin served as members of Sector Command; they were stationed on the Chimaera orbiting Lothal during Grand Admiral Thrawn's campaign directed at Phoenix Cell.
Following herself introducing herself to Colonel Soran Keize in 5 ABY, Acting Governor Fara Yadeez confirmed to Keize that she possessed the legitimate claim to govern the planet Troithe subsequent to the death of Governor Hastemoor, pending her replacement by Sector Command or a superior body.