For negotiation between such ryoge no kan and organizations of government according to the ritsuryo codes basically had to be done by accumulation through customs because there was no clear stipulation in the existing ritsuryo codes.
これら令外の官と既存の律令体制における官制との間の交渉は既存の律令法上に明確な規定がない以上、畢竟慣習による蓄積によらざるをえない。