; and (iii) sufficient airfield and airspace availability and capacity to meet requirements; and (B) possess facilities that— (i) take full advantage of existing infrastructure to provide— (I) runways, hangars, and aircrew and maintenance operations; and (II) sufficient fuel receipt, storage, and distribution for a five-day peacetime operating stock; and (ii) minimize overall construction and operational costs. (b) Limitation on use of funds Not more than 85 percent of the funds authorized to be appropriated by this Act or otherwise made available for fiscal year 2020 for the Air Force for operation and maintenance for the Management Headquarters Program (Program Element 92398F) may be obligated or expended until the Secretary of the Air Force submits the report required by subsection (a) unless the Secretary of the Air Force certifies to Congress that the use of additional funds is mission essential. 353. Prevention of encroachment on military training routes and military operations areas Section 183a of title 10, United States Code, is amended— (1) in subsection (c)(6)— (A) by striking radar or airport surveillance radar operated and inserting radar, airport surveillance radar, or wide area surveillance over-the-horizon radar operated ; and (B) by inserting Any setback for a project pursuant to the previous sentence shall not be more than what is determined to be necessary by a technical analysis conducted by the Lincoln Laboratory at the Massachusetts Institute of Technology or any successor entity. after mitigation options. ; (2) in subsection (d)— (A) in paragraph (2)(E), by striking to a Deputy Secretary of Defense, an Under Secretary of Defense, or a Principal Deputy Under Secretary of Defense and inserting to the Deputy Secretary of Defense, an Under Secretary of Defense, or a Deputy Under Secretary of Defense ; (B) by redesignating paragraph (3) as paragraph (4)