CFR›Title 48›Chapter 6›Part 651 ContainsSubpart 651.70CorpusDaily eCFRDisplayed edition2026-10-09Last updated2026-10-09 PART 651—USE OF GOVERNMENT SOURCES BY CONTRACTORS Subparts 651.70 Subpart 651.70—Contractor Use of Travel Advances, Official Travel Orders, and Government Travel Requisitions Authority40 U.S.C. 486(c); 22 U.S.C. 2658.