14 C.F.R. § 171.101 Scope.
Title 14 - Aeronautics and Space
This subpart sets forth minimum requirements for the approval and operation of non-Federal Simplified Directional Facilities (SDF) that are to be involved in the approval of instrument flight rules and air traffic control procedures related to those facilities.
Title 14: Aeronautics and Space
PART 171—NON-FEDERAL NAVIGATION FACILITIES
Subpart F—Simplified Directional Facility (SDF)
§ 171.101 Scope.
