CFR›Title 7›Subtitle B›Chapter I›Part 51›Subpart II›Subject Group Size Classifications ContainsSection 51.3198CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Sections 51.3198 § 51.3198 Size classifications. Previous Samples for Grade and Size Determination Samples for Grade and Size Determination Next Tolerances Tolerances