[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: 41CFR301-53.6] [Page 60] TITLE 41--PUBLIC CONTRACTS AND PROPERTY MANAGEMENT CHAPTER 301--TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES PART 301-53--USING PROMOTIONAL MATERIALS AND FREQUENT TRAVELER PROGRAMS--Table of Contents Sec. 301-53.6 When my agency participates in a mandatory travel management program, may I select a travel service provider based on whether it provides frequent travel credits? No. You must use the travel management program for which your agency is a mandatory user, including contract passenger transportation service when such programs are available.