267.3(1)No automobile insurer shall charge rates that are not permitted to be charged in accordance with the provisions of this Act.

267.3(2)Subsection (1) does not prevent an insurer from continuing to charge the rates the insurer was charging on the commencement of this section if those rates were approved or deemed to have been approved by the Board in accordance with this Act as it read immediately before the commencement of this section.