Moreover, even in the structure of kokuga managed by kokushi, mokudai (deputy) and Zaichokanjin (the local officials in Heian and Kamakura periods), they began to ask Kokugaryo (territories governed by provincial government office) under their control to bear the load of guard of kokushi's residence or repair of Kokubun-ji Temple or Ichinomiya, thus a land survey was carried on as in shoen to impose kuji as zaikeyaku.
更に国司・目代・在庁官人によって運営されている国衙機構においても国司の館の警固や国分寺・一宮の修繕などを自己の管轄下にあった国衙領に負担を求めるようになり、荘園と同様に検注が行われて在家役として「公事」が課役された。