[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR135.101] [Page 1079] TITLE 14--AERONAUTICS AND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 135_OPERATING REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES Subpart B_Flight Operations Sec. 135.101 Second in command required under IFR. Except as provided in Sec. 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]