; (2) senior managers who have experience in management, finance, historical preservation, fish and wildlife conservation, and airport management; and (3) such additional staff as are necessary to properly manage Midway Atoll. 5. Restoration of demolished infrastructure (a) In general The Director of the United States Fish and Wildlife Service shall restore all infrastructure of the Midway Atoll that has been demolished and is necessary for public visitation on the Midway Atoll. (b) Fuel tanks Such restoration shall include replacement of two (2,000,000 gallon) fuel tanks that are essential for the sale of fuel and for the financial viability of the Midway Atoll. 6. GAO study The Comptroller General of the United States shall, every three years, conduct a comprehensive study of all activities on the Midway Atoll and report on such study to the Committee on Energy and Natural Resources, the Committee on Appropriations, and the Committee on Environment and Public Works of the Senate and Committee on Natural Resources and the Committee on Appropriations of the House of Representatives.