participation of NASA personnel, the Administrator and NASA Administrator may authorize the use of NASA technical services, equipment, software, and facilities without reimbursement to facilitate cooperation between agencies under the program. (d) Program review and report (1) Review The Comptroller General shall conduct a comprehensive review of the program that includes evaluation of the impact of the program on improving coordination on projects and sharing of technical expertise between agencies relating to advanced aviation technologies. (2) Report Not later than 3 years after the date of enactment of this section, the Comptroller General shall submit to the appropriate committees of Congress a report containing the results of the review conducted under paragraph (1), along with recommendations for such future action as the Comptroller General determines appropriate. 905. Advancing global leadership on civil supersonic aircraft Section 181 of the FAA Reauthorization Act of 2018 ( 49 U.S.C. 40101 note) is amended— (1) in subsection (a), by striking regulations, and standards and inserting regulations, standards, and recommended practices