The design of Juroku-yaegiku (eightfold Chrysanthemum with sixteen petals) was officially designated as the crest of the Imperial family by the declaration of Dajokan (Grand Council of state)/Dajokantatsu dai 802 go (No. 802 of the transmittal of Dajokan) issued on September 30, 1869.
十六八重菊が公式に皇室の紋とされたのは、1869年（明治2年）8月25日(旧暦)の太政官布告・太政官達第802号による。