; (B) receivers for boom or probe-and-drogue training opportunities with joint and international partners; and (C) sufficient airfield and airspace availability and capacity to meet requirements; and (2) possess facilities that— (A) take full advantage of existing infrastructure to provide— (i) runway, hangars, and aircrew and maintenance operations; and (ii) sufficient fuels receipt, storage, and distribution capacities for a 5-day peacetime operating stock; and (B) minimize overall construction and operational costs. 1048. Authorization to procure up to six polar-class icebreakers (a) Authority To procure icebreakers (1) In general The Secretary of the department in which the Coast Guard is operating may, in consultation with the Secretary of the Navy, enter into a contract or contracts for the procurement of up to six polar-class icebreakers, including— (A) polar-class heavy icebreakers