CFR›Title 7›Subtitle B›Chapter I›Part 91›7 CFR Part 91 Subpart E Citation7 CFR Part 91 Subpart EContainsSections § 91.19–§ 91.22CorpusDaily eCFRDisplayed edition2026-09-03Last updated2026-09-03 Subpart E—Samples Sections § 91.19 § 91.19 General requirements of suitable samples. § 91.20 § 91.20 Shipping. § 91.21 § 91.21 Protecting samples. § 91.22 § 91.22 Disposition of analyzed sample. Authority7 U.S.C. 1622, 1624.Source58 FR 42415, Aug. 9, 1993, unless otherwise noted.