CFR›Title 48›Chapter 6›Part 631 ContainsSubparts 631.1–631.2CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 631—CONTRACT COST PRINCIPLES AND PROCEDURES Subparts 631.1 Subpart 631.1—Applicability Section 631.101 631.2 Subpart 631.2—Contracts with Commercial Organizations Sections 631.205–631.205-6 Authority22 U.S.C. 2651a, 40 U.S.C. 121(c) and 48 CFR chapter 1.Source59 FR 66764, Dec. 28, 1994, unless otherwise noted. Previous 630 Part 630—Cost Accounting Standards Administration Next 632 Part 632—Contract Financing