underserved market
(14) Underserved market .— The term “underserved market” means a passenger air transportation market (as defined by the Secretary) that— (A) is served (as determined by the Secretary) by a nonhub airport or a small hub airport; (B) is not within a 40-mile radius of an airport that each year has at least .25 percent of the total annual boardings in the United States; and (C) the Secretary determines does not have sufficient air service.