CFR›Title 38›Chapter I›Part 51›Subpart A ContainsSections 51.1–51.2CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart A—General Sections 51.1 § 51.1 Purpose and scope of this part. 51.2 § 51.2 Definitions. Source83 FR 61271, Nov. 28, 2018, unless otherwise noted. Next B Subpart B—Obtaining Recognition and Certification for per Diem Payments