Such a survey was principally conducted by Geki (Secretary of the Grand Council of State), Jingikan (department of worship) and scholars of Shodo (various fields of academy) belonged to Daigaku-ryo (Bureau of Education under the ritsuryo system) or Onmyoryo (Bureau of Divination).
主に外記や神祇官、大学寮や陰陽寮に属する諸道の学者などが行った。