14 C.F.R. § 135.109 Pilot in command or second in command: Designation required.
Title 14 - Aeronautics and Space
(a) Each certificate holder shall designate a— (1) Pilot in command for each flight; and (2) Second in command for each flight requiring two pilots. (b) The pilot in command, as designated by the certificate holder, shall remain the pilot in command at all times during that flight.
Title 14: Aeronautics and Space
PART 135—OPERATING REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT
Subpart B—Flight Operations
§ 135.109 Pilot in command or second in command: Designation required.
