If there are compelling reasons, Imperial Princes, Imperial Princesses, Princes and Princesses – excluding the Crown Prince and the Son of the Crown Prince – can lose their Imperial status regardless of the their own will, based on the decision made by the Imperial Household Council (Clause 2, Article 11 of the Imperial Household Act).
皇太子・皇太孫を除く親王・内親王・王・女王は、やむを得ない特別の事由があるときは、本人の意思に関わらず、皇室会議の判断で、皇族の身分を離れる（皇室典範11条2項）。