; and (E) options for further reform of the Essential Air Service program. (b) Required analysis on communities In carrying out subsection (a)(2)(E) the Comptroller General shall include, for each option for further reform, an analysis of the impact on local economies of communities with airports receiving Essential Air Service funding, access to air travel for residents of rural communities and the impact to local businesses in such communities. (c) Report Not later than 180 days after the date of enactment of this Act, the Comptroller General shall submit to the appropriate committees of Congress a report on the results of the study conducted under subsection (a). 453. Air transportation to noneligible places (a) Definitions Section 41731(a)(1)(A)(ii) of title 49, United States Code, is amended by striking Wendell H. Ford Aviation Investment and Reform Act for the 21st Century, and inserting FAA Extension, Safety, and Security Act of 2016 ( Public Law 114–190 ), . (b) Program sunset Section 41736 of title 49, United States Code, is amended by adding at the end the following: (h) Sunset (1) Proposals No proposal under subsection (a) may be accepted by the Secretary after the date of enactment of this subsection. (2) Program The Secretary may not provide any compensation under this section after the date that is 2 years after the date of enactment of this subsection. . 454. Inspector general review of service and oversight of unsubsidized carriers (a) In general Not later than 1 year after the date of enactment of this Act, the inspector general of the Department of Transportation shall conduct and complete a review of orders issued by the Department of Transportation from 2005 through the date of enactment of this Act to determine whether the carriers providing unsubsidized service provided basic essential air service, and whether the Department conducted sufficient oversight of carriers providing unsubsidized service to ensure air service quality and community satisfaction. (b) Contents The review shall