[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: 41CFR301-51.4] [Page 61] TITLE 41--PUBLIC CONTRACTS AND PROPERTY MANAGEMENT CHAPTER 301--TEMPORARY DUTY (TDY) TRAVEL ALLOWANCES PART 301-51_PAYING TRAVEL EXPENSES--Table of Contents Subpart A_General Sec. 301-51.4 If my agency grants an exemption, does that prevent me from using the card on a voluntary basis? No, an exemption from use would not prevent you from using the Government contractor-issued travel charge card on a voluntary basis in accordance with your agency's policy.