6.4(12)A person who, on the commencement date of a Coastal Designation Order, owns or is proposing, developing, constructing, operating or maintaining an activity, thing or use that is prohibited, controlled, limited or otherwise affected by any requirements imposed under subsection (6) shall begin complying with those requirements on the commencement date of the Order and shall continue to comply with all requirements except those from which the person has been granted an exemption.