that private property has been notified in writing by the coordinating entity and has given written consent for such preservation, conservation, or promotion to the coordinating entity. (i) Landowner withdrawal Any owner of private property located within the boundary of the heritage area shall have their property immediately removed from inclusion in the heritage area by submitting a written request to the coordinating entity. 8. Sunset The authority of the Secretary to provide assistance under this Act terminates on the date that is 15 years after the date of the enactment of this Act.