14 C.F.R. § 121.595 Dispatching authority: Flag operations.
Title 14 - Aeronautics and Space
(a) No person may start a flight unless an aircraft dispatcher specifically authorizes that flight. (b) No person may continue a flight from an intermediate airport without redispatch if the airplane has been on the ground more than six hours.
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart U—Dispatching and Flight Release Rules
§ 121.595 Dispatching authority: Flag operations.