CFR›Title 7›Subtitle B›Chapter I›Part 51›Subpart X›Subject Group Tolerances for Grade Defects ContainsSection 51.2280CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Sections 51.2280 § 51.2280 Tolerances for grade defects. Previous Size Requirements Size Requirements Next Unclassified Unclassified