Under regulations of the Ritsuryo codes, the Kokuga employed the kokushi shitokan (four officials of the provincial governor) as follows: Kami (director of the provincial governors): Suke (vice governor of provincial offices, the second ranking government official): Jo (facilities manager, secretary of provincial offices, the third ranking government official): Sakan (clerk of provincial offices, the fourth ranking government official) and a secretary called Shisho (a clerk, a person doing miscellaneous duties on documents).
国衙には、律令の規定に基づいて守・介・掾・目の国司四等官と書記官である史生が勤務した。