[Code of Federal Regulations] [Title 41, Volume 4] [Revised as of July 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 41CFR301-10.137] [Page 27] TITLE 41--PUBLIC CONTRACTS AND PROPERTY MANAGEMENT CHAPTER 301--TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES PART 301-10--TRANSPORTATION EXPENSES--Table of Contents Subpart B--Common Carrier Transportation Sec. 301-10.137 What exceptions to the Fly America Act requirements apply when I travel solely outside the United States, and a U.S. flag air carrier provides service between my origin and my destination? You must always use a U.S. flag carrier for such travel, unless, when compared to using a foreign air carrier, such use would: (a) Increase the number of aircraft changes you must make en route by 2 or more; or (b) Extend your travel time by 6 hours or more; or (c) Require a connecting time of 4 hours or more at an overseas interchange point. [[Page 28]]