§171.251. Scope.
14 C.F.R. § 171.251
This subpart sets forth minimum requirements for the approval and operation of non-Federal Interim Standard Microwave Landing System (ISMLS) facilities that are to be involved in the approval of instrument flight rules and air traffic control procedures related to those facilities.
Notes, amendments, and revision history
Source
Source: Docket 14120, 40 FR 36110, Aug. 19, 1975, unless otherwise noted.
Authority
Authority: 49 U.S.C. 106(g), 40103-40107, 40109, 40113, 44502, 44701-44702, 44708-44709, 44711, 44719-44721, 45303, 46308.
Source
Source: Docket 5034, 29 FR 11337, Aug. 6, 1964, unless otherwise noted.