; and (3) that, if it is determined that spectrum designated for aviation use is not suitable for operations by small unmanned aircraft systems, includes recommendations of other spectrum frequencies that may be appropriate for such operations. 2153. Use of unmanned aircraft systems at institutions of higher education (a) In general Not later than 270 days after the date of enactment of this Act, the Administrator of the Federal Aviation Administration shall establish procedures and standards, as applicable, to facilitate the safe operation of unmanned aircraft systems by institutions of higher education, including faculty, students, and staff. (b) Standards The procedures and standards required under subsection (a) shall outline risk-based operational parameters to ensure the safety of the national airspace system and the uninvolved public that facilitates the use of unmanned aircraft systems for educational or research purposes. (c) Unmanned aircraft system approval The procedures required under subsection (a) shall allow unmanned aircraft systems operated under this section to be modified for research purposes without iterative approval from the Administrator. (d) Additional procedures The Administrator shall establish a procedure to provide for streamlined, risk-based operational approval for unmanned aircraft systems operated by institutions of higher education, including faculty, students, and staff, outside of the parameters or purposes set forth in subsection (b). (e) Deadlines (1) In general If, by the date that is 270 days after the date of enactment of this Act, the Administrator has not set forth standards and procedures required under subsections (a), (b), and (c), an institution of higher education may— (A) without specific approval from the Federal Aviation Administration, operate small unmanned aircraft at model aircraft fields approved by the Academy of Model Aeronautics and with the permission of the local club of the Academy of Model Aeronautics