1 county-level rule, plus city-specific rules for 1 city in Washtenaw County, Michigan.
Verified from official government sources
Ann Arbor protects landmark and woodland trees under its Natural Features Protection rules. A landmark tree is any tree of 24-inch DBH or greater (or a listed species threshold). Removing them during development requires city review, mitigation, and replacement or canopy-loss fees.
Ann Arbor Code 5:120 (Natural Features definitions)
Landmark tree. Any tree of 24-inch DBH or greater, or that is a type and DBH equal to or greater than shown on the landmark tree list in the land development regulations, and that has a health and condition standard factor of over 50% based on the standards established by the Internal Society of Arboriculture.
1 cities in Washtenaw County have their own tree protection rules. Each link goes to that city's dedicated page with code citations.
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