concerned and the County. (d) Reversionary clause required A conveyance of Federal land under subsection (a) or (b) shall include a reversionary clause to ensure that management of the Federal land conveyed under the applicable subsection shall revert to the Secretary concerned if the Federal land is no longer being managed in accordance with the applicable subsection. (e) Map, acreage estimates, and legal descriptions (1) Minor errors The Secretary concerned and the County may, by mutual agreement— (A) make minor boundary adjustments to the parcels of Federal land to be conveyed under subsection (a) or (b)