The branch office has jurisdiction over the northern area of Shinsanda Station on the Fukuchiyama Line, a section between the Sonobe Station and the Igumi Station on the Sanin Main Line, as well as the Maizuru Line and the Bantan Line.
福知山線の新三田駅以北と山陰本線の園部駅～居組駅、舞鶴線、播但線を管轄している。