In "Gaichi legal system journal" (1955-1971) edited by the Treaties Bureau of the Ministry of Foreign Affairs, Taiwan, Korea, Sakhalin, the South Sea islands, the Kwangtung Leased Territory and the land appurtenant to South Manchuria Railways were treated as Gaichi.
外務省条約局編『外地法制誌』（1955～1971年）は台湾・朝鮮・樺太・南洋諸島・関東州・南満州鉄道付属地を外地として扱っていた。