CFR›Title 48›Chapter 6›Part 648 ContainsSubparts 648.1–648.2CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 648—VALUE ENGINEERING Subparts 648.1 Subpart 648.1—Policies and Procedures Section 648.102 648.2 Subpart 648.2—Contract Clauses Section 648.201 Authority22 U.S.C. 2658; 40 U.S.C. 486(c); 48 CFR 1.3. Previous 647 Part 647—Transportation Next 649 Part 649—Termination of Contracts