Subject to the regulation of the Commissioner, a savings bank holding company may acquire control of a subsidiary savings bank or any holding company upon application to and with the prior written approval of the Commissioner. The application shall be in the form prescribed by the Commissioner and contain information as will enable the Commissioner to determine whether the acquisition is consistent with the interest of maintaining a sound financial system and whether the proposed acquisition does not afford a basis for supervisory objection.
205 ILCS 205/2004