CFR›Title 7›Subtitle B›Chapter I›Part 51›Subpart X›Subject Group Unclassified ContainsSection 51.2279CorpusDaily eCFRDisplayed edition2026-05-20Last updated2026-05-20 Sections 51.2279 § 51.2279 [Reserved] Previous Tolerances for Grade Defects Tolerances for Grade Defects