| The Yoro ritsuryo code (code promulgated in the Yoro period) described that its major duties were 'taking out of and putting in a storage, denso (rice field tax) of various provinces, shomai (white rice which was the base unit in the fiscal administration under the Ritsuryo system), and tengai (mill powered by the water).' |
養老律令によれば、主な職務は「倉廩（倉庫）の出納、諸国の田租、舂米（律令財政運用の基本単位である白米）、碾磑（水車で動かす臼）の事」と記されている。 |