the Report and Order permitted spectrum leasing by one Personal Radio Service, the 218-219 MHz service, in which licensees have exclusive use of the licensed spectrum. See Report and Order at ¶ 84 & n.183. See 47 C.F.R. Part 95 subpart D. See 47 C.F.R. Part 95 subpart C. See 47 C.F.R. §95.7(a) (General Mobile Radio Service). 47 C.F.R. § 87.41(b). We note that automatic weather observation station, automatic surface observation station, and automatic terminal information station operate on a shared basis, not on an exclusive use basis. While only one automatic weather observation station, automatic surface observation station, or automatic terminal information station will be licensed at an airport, these stations do not operate on dedicated spectrum, but instead generally