Banning saikensen (ship to dispatch an envoy to Korea) owned by powerful branch families of the So clan, tokusosen (ship to dispatch an envoy to Korea to deliver immediate report), and koriwasen (ship for trading with Korea).
宗氏有力庶家名義の歳遣船、特送船（緊急の報告のための遣船）、興利倭船の禁止。