14 C.F.R. § 135.101 Second in command required under IFR.
Title 14 - Aeronautics and Space
Except as provided in §135.105, no person may operate an aircraft carrying passengers under IFR unless there is a second in command in the aircraft. [Doc. No. 28743, 62 FR 42374, Aug. 6, 1997]
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
§ 135.101 Second in command required under IFR.