Emperor Kanmu, who was an emperor from the end of the Nara period to the early Heian period, attempted to make kokushi perform his duties completely, and regulated in 782 that, if a government officer could not obtain a geyujo even after 120 days from when his successor arrived, the officer should be punished severely.
奈良時代末期から平安時代初期にかけての桓武天皇は、国司の任務遂行の徹底を企図して、延暦元年（782年）、後任が到着して120日経過しても解由状を得られない官司は、厳しい処分を受けることが定められた。