Approval of proposals for tower construction shall be subject to satisfactory completion of an aeronautical study. Applicants shall file a notice of proposed construction or alteration, FAA Form No. 7460-1 (as amended from time to time) with the Federal Aviation Administration as required by the FAA or applicable federal law, and forward copies of the form and any FAA response received, via first-class mail, postage prepaid, to the Commissioners of Leonardtown/Planning and Zoning, P.O. Box 1, Leonardtown, Maryland 20650; to the Department of the Navy, Commanding Officer, Naval Air Station, 22268 Cedar Point Road, Unit NASAD, Patuxent River, Maryland 20670-1154; to St. Mary's County Department of Planning and Zoning, P.O. Box 653, Leonardtown, Maryland 20650; and to the County's Airport Manager, P.O. Box 653, Leonardtown, Maryland 20650.