A decision to hold a meeting of the Board should be made as provided in the bylaws of the Bank and at least ten days prior to the scheduled meeting date in order for the Secretary of the Bank to give the public notice required by Sec. 1600.5. Special meetings of the Board may be held on less than ten days notice if a majority of the Board determines by a recorded vote that Bank business requires that the special meeting be held on less than ten days notice. After public announcement of a meeting of the Board under the provisions of Sec. 1600.5, the subject matter thereof, or the determination to open or close a meeting, or portion thereof, may only be changed if a majority of the Directors determines by a recorded vote that business so requires and that no earlier announcement of the change is possible.