CFR›Title 9›Chapter III›Part 351›Subject Group Definitions ContainsSections 351.1–351.2CorpusDaily eCFRDisplayed edition2026-05-21Last updated2026-05-21 Sections 351.1 § 351.1 Meaning of words. 351.2 § 351.2 Terms defined. Previous Appeals Appeals Next Facilities and Operations Facilities and Operations