; or (B) other activities authorized by the Administrator pursuant to subsection (f). (2) NEPA review The Administrator may require that each test range sponsor designated by the Administrator under subsection (a) provide a draft environmental review consistent with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ), subject to the supervision and adoption by the Federal Aviation Administration, with respect to any request for the establishment of a restricted area under this subsection. (3) Inactive restricted area (A) In general In the event a restricted area established under paragraph (1) is not needed to meet the requirements of the using agency (as described in subparagraph (B)), the restricted area shall be inactive and revert to the controlling agency. (B) Using agency For purposes of this subsection, a test range sponsor designated by the Administrator under subsection (a) shall be considered the using agency with respect to a restricted area established by the Administrator under this subsection. (4) Approval authority The Administrator shall have the authority to approve access by a participating or nonparticipating operator to a test range or restricted area established by the Administrator under this subsection. (c) Program requirements In carrying out the program under subsection (a), the Administrator— (1) may develop operational standards and air traffic requirements for flight operations at test ranges; (2) shall coordinate with, and leverage the resources of, the National Aeronautics and Space Administration and the Department of Defense, as appropriate; (3) shall address both civil and public aircraft operations; (4) shall provide for verification of the safety of flight systems and related navigation procedures as it relates to the continued development of standards for integration of unmanned aircraft systems into the national airspace system