Kuraryo had a large overlap with the Finance Ministry of the Ritsuryo system, which did the accounting and the Naishoryo (the institution where the furnishings and formality goods of the Imperial Family were made), which was the core of the government-run craft centers, and government-regulated organizations changed frequently.
国家の出納事務を行う大蔵省律令制における大蔵省や官営工房の中核である内匠寮と重複する部分も多く官制は度々変化した。