[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: 14CFR223.24] [Page 93] TITLE 14--AERONAUTICS AND SPACE CHAPTER II--OFFICE OF THE SECRETARY, DEPARTMENT OF TRANSPORTATION (AVIATION PROCEEDINGS) PART 223_FREE AND REDUCED-RATE TRANSPORTATION--Table of Contents Subpart C_International Travel Sec. 223.24 Transportation of empty mail bags. Any carrier authorized to engage in foreign air transportation may transport in foreign air transportation empty air mail bags from any country to the country of origin of such bags, free of charge, on a voluntary space-available basis.