On June 9, 799, two persons were assigned to Junior Assistant Lieutenant of the Left and the Right Divisions, and the rank of Senior Assistant Lieutenant was upgraded to Shohachiinojo (Senior Eighth Rank, Upper Grade); the rank of Junior Assistant Lieutenant was also upgraded to Juhachiinojo (Junior Eighth Rank, Upper Grade).
延暦18年4月27日に少志が左右各2名制となり、更に大志は正八位上相当、少志は従八位上相当に改められたという。