A formal procedure was established later on to ensure that awarding a rank to warriors had to be dealt by the officers called Kanto-bugyo (a commissioner of the appointment to an office) and it was conducted in the form called Buke-shisso (an intermediary between the Court and the Shogunate government), which means it is formally requested from the bakufu (Japanese feudal government headed by a shogun) to the Imperial Court.
後に武家の叙位任官は官途奉行の取り扱いのもと、幕府から朝廷へ申請する武家執奏の形式を取ることが制度化された。