[Code of Federal Regulations] [Title 14, Volume 4] [Revised as of January 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR221.55] [Page 66] TITLE 14--AERONAUTICS AND SPACE CHAPTER II--OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) PART 221_TARIFFS--Table of Contents Subpart F_Requirements Applicable to All Statements of Fares and Charges Sec. 221.55 Conflicting or duplicating fares prohibited. The publication of fares or charges of a carrier which duplicate or conflict with the fares of the same carrier published in the same or any other tariff for application over the same route or routes is hereby prohibited.