CFR›Title 7›Subtitle B›Chapter I›Part 51›Subpart J›Subject Group Application of Tolerances ContainsSection 51.1266CorpusDaily eCFRDisplayed edition2026-05-20Last updated2026-05-20 Sections 51.1266 § 51.1266 Application of tolerances. Next Basis for Calculating Percentages Basis for Calculating Percentages