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- Critical Root Zone
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Also referred to as CRZ. The distance from the trunk of the tree is regulated.
- Diameter
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The measurement across the width of the tree trunk. To calculate the diameter of a tree, measure the circumference (around the tree) and divide by 3.14.
- Heritage Tree
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Any of the following tree species when it measures 24 inches in diameter or greater: Texas Ash, Bald Cypress, American Elm, Cedar Elm, Texas Madrone, Bigtooth Maple, Pecan, Arizona Walnut, Eastern Black Walnut, and all Oak Trees.
- Protected Tree
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A Protected tree is any tree with a diameter of 19 inches or greater when measured 4.5 feet above the ground. TIP: If you wrap your arms around a tree and your hands don't overlap, it is likely a Protected tree.
- Tree Ordinance Review Application (TORA)
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A Tree Ordinance Review Application (TORA) is an application for a permit to remove or build near a regulated tree. A TORA may be completed as part of another application process, such as a building permit, or on its own, as in the case of a dead or diseased tree.