CFR›Title 7›Subtitle B›Chapter III›Part 301›Subpart W ContainsSubject group Quarantine and RegulationsCorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 Subpart W—European Larch Canker Subject Groups Quarantine and Regulations Quarantine and Regulations Sections 301.91–301.91-9 Source49 FR 18992, May 4, 1984, unless otherwise noted. Redesignated at 84 FR 2428, Feb. 7, 2019. Previous U Subpart U—Karnal Bunt Next X Subpart X—Phytophthora Ramorum