[Code of Federal Regulations] [Title 41, Volume 4] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 41CFR301-73.103] [Page 80] TITLE 41--PUBLIC CONTRACTS AND PROPERTY MANAGEMENT CHAPTER 301--TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES PART 301-73--TRAVEL PROGRAMS--Table of Contents Subpart B--Travel Management Services (TMS) Sec. 301-73.103 Are there any exceptions to this requirement? An agency head, or his/her designee, may exempt certain types of travel arrangements from the mandatory use of the travel management system. In certain situations, it may be impractical to make advance reservations, and therefore no reason exists to use a TMS.