Arizona Revised Statutes Title 3. Agriculture § 3-1426. Lawful fence defined

A. A fence shall be deemed a lawful fence when it is constructed and maintained with good and substantial posts firmly placed in the ground at intervals of not more than thirty feet, upon which posts are strung and fastened at least four barbed wires of the usual type tightly stretched and secured to the posts and spaced so that the top wire is fifty inches above the ground and the other wires at intervals below the top wire of twelve, twenty-two, and thirty-two inches. If the posts are set more than one rod apart, the wires shall be supported by stays placed not more than seven and one-half feet from each other or from the posts, extending from the top wire of the fence to the ground, and each wire of the fence securely fastened thereto.

B. All fences constructed other than as provided in subsection A, or of other materials equally as strong and otherwise effective to turn livestock as the fences described in subsection A, shall also be deemed lawful fences within the meaning of this section.