An agency of the state may not participate or cooperate with a federal or private study considering additions to or deletions from the area of the Alaska Chilkat Bald Eagle Preserve without giving 90 days' prior notice to the Alaska Chilkat Bald Eagle Preserve Advisory Council. The director of the division of parks may waive the notice required by this subsection on the director's determination in writing to the advisory council that an emergency necessitates immediate study or a shorter period of notice to the advisory council.