CFR›Title 34›Subtitle B›Chapter III›Part 300›Subpart A ContainsSubject groups Definitions Used in This Part–Purposes and ApplicabilityCorpusDaily eCFRDisplayed edition2026-05-12Last updated2026-05-12 Subpart A—General Subject Groups Definitions Used in This Part Definitions Used in This Part Sections 300.4–300.45 Purposes and Applicability Purposes and Applicability Sections 300.1–300.2 Next Appendix A to Part 300 Appendix A to Part 300—Excess Costs Calculation