Gunbu Daijin Geneki Bukan sei (Military Ministers to be Officers on Active-duty Rule) is a regulation to limit the appointing authority of Military Ministers (Minister of War and the Navy) to only active military officers.
軍部大臣現役武官制（ぐんぶだいじんげんえきぶかんせい）とは、軍部大臣（陸軍大臣、海軍大臣）の補任資格を現役の武官（軍人）に限る制度。