Within 90 days after receipt from the Authority of a management plan, the Maryland Historical Trust shall approve or disapprove the plan. Unless the Maryland Historical Trust determines that a management plan would adequately carry out the purposes of this subtitle, it may not approve the management plan. In considering whether to approve a management plan, the Maryland Historical Trust shall consult with appropriate units of the State government, including the Department of Commerce, the Department of Natural Resources, and the Department of Planning. If the Maryland Historical Trust disapproves a management plan, the Trust shall advise the Authority of the reason for the disapproval and provide recommendations for a revision of the plan. The Maryland Heritage Areas Authority shall approve or disapprove any revisions to an existing management plan for the Heritage Area in accordance with § 13–1111(m) of this title.