CFR›Title 48›Chapter 18›Part 1843 ContainsSubpart 1843.2CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 1843—CONTRACT MODIFICATIONS Subparts 1843.2 Subpart 1843.2—Change Orders Sections 1843.205–1843.205-70 Authority51 U.S.C. 20113(a) and 48 CFR chapter 1.Source62 FR 14022, Mar. 25, 1997, unless otherwise noted. Previous 1842 Part 1842—Contract Administration and Audit Services Next 1844 Part 1844—Subcontracting Policies and Procedures