US lawMassachusettsRegulations330 CMR — Massachusetts Department of Agricultural Resources330 CMR 9.00 — Plant quarantines9.01330 CMR 9.01PurposeYear: 2026Length: 24 wordsOfficial source The purpose of 330 CMR 9.00 is to prevent the spread of white pine blister rust, Cronartium ribicola, a disease affecting white pine trees.Next330 CMR 9.02