14 C.F.R. § 125.357 Communication and navigation facilities.
Title 14 - Aeronautics and Space
No person may release an airplane over any route or route segment unless communication and navigation facilities equal to those required by §125.51 are in satisfactory operating condition.
Title 14: Aeronautics and Space
PART 125—CERTIFICATION AND OPERATIONS: AIRPLANES HAVING A SEATING CAPACITY OF 20 OR MORE PASSENGERS OR A MAXIMUM PAYLOAD CAPACITY OF 6,000 POUNDS OR MORE; AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT
Subpart K—Flight Release Rules
§ 125.357 Communication and navigation facilities.

