Also, the kokushi rankings and personnel were also base don this classification (for example, the position of taigoku no kami (governor of a major province) was reserved for Jugoinojo (Junior Fifth Rank, Upper Grade), the position of jogoku no kami (governor of a second ranking province) were reserved for Jurokunoge (Junior Sixth Rank, Lower Grade), while suke (vice-governors) were not appointed to chugoku (middle-ranking provinces) or gekoku (lower-ranking provinces).
また、国司の格や人員も（大国の守は従五位上だが上国の守は従六位下、中国・下国には介は置かないなど）これに基づいた。