MC.II.A.K5

From the FAA library

• 14 CFR Part 91 — General Operating and Flight RulesOpen
  14 CFR § 91.123 Compliance with ATC clearances and instructions.

  Compliance with ATC clearances and instructions. (a) When an ATC clearance has been obtained, no pilot in command may deviate from that clearance unless an amended clearance is obtained, an emergency exists, or the deviation is in response…

• 14 CFR Part 91 — General Operating and Flight RulesOpen
  14 CFR § 91.905 List of rules subject to waivers.

  rules: Water operations. 91.117 Aircraft speed. 91.119 Minimum safe altitudes: General. 91.121 Altimeter settings. 91.123 Compliance with ATC clearances and instructions. 91.125 ATC light signals. 91.126 Operating on or in the vicinity of an airport in Class G airspace…

• 14 CFR Part 91 — General Operating and Flight RulesOpen
  14 CFR § 91.138 Temporary flight restrictions in national disaster areas in the State of Hawaii.

  operation is conducted in compliance with the conditions and restrictions established by the official in charge of on-scene emergency response activities. (5) The aircraft is operating in accordance with an ATC clearance or instruction…

• Pilot's Handbook of Aeronautical Knowledgep. 15-10
  Chapter 15: Airspace › Air Traffic Control and the National Airspace System › Operating Rules and Pilot/Equipment Requirements

  instructed by ATC while operating in the Class D airspace area. If departing from a satellite airport without an operating control tower, the pilot must establish and maintain two-way radio communications with the ATC facility having jurisdiction over ... radio fails in flight under IFR, the pilot should continue the flight by the route assigned in the last ATC clearance received; or, if being radar vectored, by the direct route from the point of radio failure…