[Code of Federal Regulations] [Title 41, Volume 4] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 41CFR301-10.161] [Page 33] 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. 301-10.161 What class of train accommodations must I use? You must use coach-class accommodations for all train travel, except when your agency authorizes first-class service.