14 C.F.R. § 121.603 Facilities and services: Supplemental operations.
Title 14 - Aeronautics and Space
(a) Before beginning a flight, each pilot in command shall obtain all available current reports or information on airport conditions and irregularities of navigation facilities that may affect the safety of the flight. (b) During a flight, the pilot in command shall obtain any additional available information of meteorological conditions and irregularities of facilities and services that may affect the safety of the flight.
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart U—Dispatching and Flight Release Rules
§ 121.603 Facilities and services: Supplemental operations.