Hot tubs and spas in unincorporated Pima County must comply with ARS 36-1681 barrier requirements if they hold water deeper than 18 inches. A lockable safety cover meeting ASTM F1346 standards may substitute for a full barrier enclosure. Electrical work requires a county permit.
Arizona ARS 36-1681 applies to hot tubs and spas with water depth of 18 inches or more. In unincorporated Pima County, a hot tub or spa must either be enclosed by a barrier meeting pool fencing standards (5-foot fence, self-closing/self-latching gate) or be equipped with a lockable safety cover that meets ASTM F1346 specifications and can support the weight of a child. The safety cover must be fully closed and locked when the spa is not in active use. A building permit from Pima County Development Services is required for electrical connections (240V circuits, GFCI protection) and any gas line work for gas-heated spas. Plug-in portable spas on existing circuits may not require a permit, but the electrical connection must still meet code (GFCI protection within 5 feet). Setback requirements follow accessory structure rules: typically 5 feet from side and rear property lines. Hot tub water discharge must not flow onto neighboring properties or into storm drains; proper drainage to pervious ground is required.
Contact your local code enforcement office for specific penalty information.
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See how Pima County's hot tub rules rules stack up against other locations.
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