CFR›Title 7›Subtitle B›Chapter III›Part 301›Subpart O ContainsSubject group Quarantine and RegulationsCorpusDaily eCFRDisplayed edition2026-05-20Last updated2026-05-20 Subpart O—Witchweed Subject Groups Quarantine and Regulations Quarantine and Regulations Sections 301.80–301.80-10 Previous N Subpart N—Citrus Greening and Asian Citrus Psyllid Next P Subpart P—Imported Fire Ant