14 C.F.R. § 121.609 Communication and navigation facilities: Supplemental operations.
Title 14 - Aeronautics and Space
No person may release an aircraft over any route or route segment unless communication and navigation facilities equal to those required by §121.121 are in satisfactory operating condition.
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart U—Dispatching and Flight Release Rules
§ 121.609 Communication and navigation facilities: Supplemental operations.
