The post of Grand Steward has been officers certified by the Emperor since the establishment of Kunaifu in 1947 and the name change to Imperial Household Agency and the effectuation of the Constitution of Japan in 1949, and its appointment and dismissal are attest by the Emperor.
1947年の宮内府設置、1949年の宮内庁改称と日本国憲法の施行以来一貫して長官の職は認証官であり、その任免は天皇により認証される。