Provincial governors recommended and selected Hyoe from the following: children of those who were of Eighth Rank upwards to Sixth Rank downwards at the age of twenty-one and above; and children of locally appointed officials under the Ritsuryo system who were good at archery and horseback riding.
六位以下八位以上の嫡子で21歳以上の者及び令制国の郡司の子弟で弓馬に巧みな者を国司が推薦して選抜した。