Do I need a permit to prune mature trees?
Because mature trees are protected by the San Gabriel Municipal code, residents should apply for a free permit before pruning or trimming their tree to be certain it's okay to do so. Pruning is the most common tree maintenance procedure. Forest trees grow well in a natural environment. However, landscape trees need a different level of maintenance. Pruning should be done with an understanding of how the tree responds to each cut. Improper trimming can cause damage that will last for the life of the tree, or worse, shorten the life of the tree entirely. Tree Removal/Trimming Application

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1. How do I get a tree on my private property removed or trimmed?
2. Do I need a permit to prune mature trees?
3. What are the conditions for getting a permit?
4. What does the City ordinance say?
5. Are there exemptions?
6. Who trims trees in the public parkway?