[Code of Federal Regulations] [Title 14, Volume 2] [Revised as of January 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR135.109] [Page 665] TITLE 14--AERONAUTICSAND SPACE CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PART 135--OPERATING REQUIREMENTS: COMMUTER AND ON DEMAND OPERATIONS AND RULES GOVERNING PERSONS ON BOARD SUCH AIRCRAFT--Table of Contents Subpart B--Flight Operations Sec. 135.109 Pilot in command or second in command: Designation required. (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.