①A director (or, an executive officer, if the bank is a company with nominating committee, etc.) who is engaged in the day-to-day operations of a bank must not engage in the day-to-day operations of any other company without the authorization by the Prime Minister.

②When an application is filed for the authorization referred to in the preceding paragraph, the Prime Minister must not grant the authorization unless the Prime Minister finds that the particulars given in the application are unlikely to interfere with the sound and appropriate management of the bank's services.