; (B) are more likely to result in self-sustaining air service at the end of the program; (C) request a Federal share lower than 50 percent; and (D) propose to use grant funds in a timely fashion. (6) Federal share The Federal share of the cost of operating assistance provided under the program may not exceed 50 percent. (7) Sunset This subsection shall cease to be effective on October 1, 2023. . 455. 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. . 456. Authorization of certain flights by stage 2 airplanes (a) In general Notwithstanding section 47534 of title 49, United States Code, not late than 180 days after the date of the enactment of this Act, the Administrator of the Federal Aviation Administration shall initiate a pilot program to permit the operator of a Stage 2 airplane to operate that airplane in revenue and nonrevenue service into medium hub airports or nonhub airports if— (1) the airport— (A) is certified under part 139 of 14, Code of Federal Regulations; (B) has a runway that— (i) is longer than 8,000 feet and not less than 200 feet wide; and (ii) is load bearing with a pavement classification number of not less than 38; (C) has a maintenance facility with a maintenance certificate issued under part 145 of such title; and (D) certifies annually to the Administrator that the airport intends to continue participating in the pilot program