[Code of Federal Regulations] [Title 14, Volume 4] [Revised as of January 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 14CFR221.70] [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 H--Amendment of Tariffs Sec. 221.70 Who may amend tariffs. A tariff shall be amended only by the carrier or agent who issued the tariff (except as otherwise authorized in subparts P and Q).