; and (2) to mitigate an anticipated shortage of pilots and other aviation professionals. 5016. Authorization of certain flights by stage 2 aircraft (a) In general Notwithstanding chapter 475 of title 49, United States Code, not later than 180 days after the date of enactment of this Act, the Administrator of the Federal Aviation Administration shall initiate a pilot program to permit 1 or more operators of a stage 2 aircraft to operate that aircraft in nonrevenue service into not more than 4 medium hub airports or nonhub airports if— (1) the airport— (A) is certified under part 139 of title 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; and (C) has a maintenance facility with a maintenance certificate issued under part 145 of such title; and (2) the operator of the stage 2 aircraft operates not more than 10 flights per month using that aircraft. (b) Termination The pilot program shall terminate on the earlier of— (1) the date that is 10 years after the date of the enactment of this Act; or (2) the date on which the Administrator determines that no stage 2 aircraft remain in service. (c) Definitions In this section: (1) Medium hub airport; nonhub airport The terms medium hub airport and nonhub airport have the meanings given those terms in section 40102 of title 49, United States Code. (2) Stage 2 aircraft The term stage 2 aircraft has the meaning given the term stage 2 airplane in section 91.851 of title 14, Code of Federal Regulations (as in effect on the day before the date of the enactment of this Act). 5017. Supersonic aircraft Not later than 180 days after the date of enactment of this Act, the Administrator of the Federal Aviation Administration shall— (1) review Federal law, including regulations and policies, regarding the operation of supersonic aircraft over land in the United States