; or (ii) if an appeal of such determination is requested, for the 1-year period described in subsection (d)(4)(D) . (2) Exemption Section 47124(b)(3)(D) of title 49, United States Code, is amended by adding at the end the following: Airports with air service under part 121 of title 14, Code of Federal Regulations, and more than 25,000 passenger enplanements in calendar year 2014 shall be exempt from any cost-share requirement under this subparagraph. . (3) Construction of air traffic control towers (A) Grants Section 47124(b)(4)(A) of title 49, United States Code, is amended in each of clauses (i)(III) and (ii)(III) by inserting , including remote air traffic control tower equipment certified by the Federal Aviation Administration after 1996 . (B) Eligibility Section 47124(b)(4)(B)(i)(I) of title 49, United States Code, is amended by striking pilot . (C) Limitation on Federal share Section 47124(b)(4) of title 49, United States Code, is amended by striking subparagraph (C). (4) Benefit-to-cost calculation for program applicants Section 47124(b)(3) of title 49, United States Code, is amended by adding at the end the following: (G) Benefit-to-cost calculation Not later than 90 days after receiving an application to the Contract Tower Program, the Secretary shall calculate a benefit-to-cost ratio (as described in subsection (d)) for the applicable air traffic control tower for purposes of selecting towers for participation in the Contract Tower Program. . (b) Criteria To evaluate participants Section 47124 of title 49, United States Code, is amended by adding at the end the following: (d) Criteria To evaluate participants (1) Timing of evaluations (A) Towers participating in cost-share program In the case of an air traffic control tower that is operated under the program established under subsection (b)(3), the Secretary shall annually calculate a benefit-to-cost ratio with respect to the tower. (B) Towers participating in contract tower program In the case of an air traffic control tower that is operated under the