Based on 'Engishiki Jinmyocho' (Jinja shrines' list under the Engishiki ('Engishiki' is an ancient book for lows and regulation compiled during the Engi era, in which shrine listing procedures are included) (Volume 9 and 10), the ranking of Jinja shrines was decided.
延喜式の「神名帳」（第9-10巻）において神社の格式（ランキング）を定めた。