CFR›Title 27›Chapter I›Part 19›Subpart N›Subject Group Filing Formulas with TTB ContainsSection 19.348CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Sections 19.348 § 19.348 Formula requirements. Previous 19.341 § 19.341 General. Next Obscuration Determination Obscuration Determination