No Mohave County ordinance requires a permit to prune or trim a tree on your own lot, and there is no urban street-tree program in the unincorporated desert. The real limit is Arizona's Native Plant Law, which protects wild species like saguaro, ocotillo, and ironwood.
On private land in unincorporated Mohave County you can prune your own trees and shrubs without a county permit. Common law lets you cut a neighbor's overhanging branches back to the property line at your own cost. What changes the picture here is Arizona's Native Plant Law (A.R.S. Title 3, Chapter 7), administered by the Arizona Department of Agriculture: protected wild plants, including all cacti, ocotillo, and native trees such as ironwood, palo verde, and mesquite, cannot be destroyed or moved without notice and a permit tag. Routine trimming of a healthy plant is fine; destroying or removing a protected native is what triggers the law.
Nothing for ordinary pruning. Destroying or removing a protected native plant without the required notice and Department of Agriculture permit can bring state penalties and salvage requirements. Cutting past the property line into a neighbor's tree invites civil liability.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Lake Havasu City's tree trimming rules stack up against other locations.
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