CFR›Title 48›Chapter 2›Part 243 ContainsSubparts 243.1–243.2CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 243—CONTRACT MODIFICATIONS Subparts 243.1 Subpart 243.1—General Sections 243.107-70–243.172 243.2 Subpart 243.2—Change Orders Sections 243.204–243.205-72 Authority41 U.S.C. 1303 and 48 CFR chapter 1.Source56 FR 36446, July 31, 1991, unless otherwise noted. Previous 242 Part 242—Contract Administration and Audit Services Next 244 Part 244—Subcontracting Policies and Procedures