CFR›Title 27›Chapter I›Part 19›Subpart G›Subject Group Measuring and Proofing Equipment Requirements ContainsSection 19.188CorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 Sections 19.188 § 19.188 Measuring devices and proofing instruments. Previous 19.181 § 19.181 General. Next Other Plant Requirements Other Plant Requirements