Pool Covers in Southern Arizona: Where They Are Required and Where They Replace a Barrier
The two Southern Arizona jurisdictions that require a pool cover by code, and the jurisdictions that accept an ASTM F1346 powered cover in lieu of barrier requirements.
All entries on this page were verified against primary sources on 2026-09-10.
Is a pool cover required by code anywhere in Southern Arizona?
Yes, in two jurisdictions, and this surprises most builders. Cochise County requires all new pools to have a cover and to be covered when not in use. Sierra Vista requires new pools, spas and hot tubs to have a cover and requires it to be SOLID, not mesh. Neither requirement is a barrier substitute; both are on top of the barrier.
Two Cochise County jurisdictions require a pool cover as a condition of the build. This is separate from, and additional to, the barrier.
Cochise County, unincorporated. Zoning Regulations Section 2.51.140, the current codified section, formerly numbered Section 1816, requires verbatim that all new pools shall have a cover, and that pools shall be covered when not in use to minimize evaporation. Resolution 26-23, adopted 2026-07-14 and effective 2026-09-01, amends ISPSC 303.1.3 Covers to add a cross-reference to Zoning 2.51.140, so the requirement now reaches from the zoning code into the adopted building code.
City of Sierra Vista. UDO 151.04.009(E), added by Ordinance 2019-007 passed 2019-11-14, requires new swimming pools, spas and hot tubs to have a cover, and requires that covers shall be of a SOLID, not mesh, design. Sierra Vista’s rule is the stricter of the two because it excludes mesh outright.
What this does to a bid. A cover that satisfies a mandatory-cover jurisdiction is a line item, not an upgrade, and a solid cover costs more than mesh. A proposal for a Cochise County or Sierra Vista job that shows a cover as an optional add-on is either mispriced or is going to produce an argument at final inspection. Ask to see the cover on the plan set before signing.
This is not a barrier substitute. A mandatory evaporation or safety cover under these two provisions does not remove the barrier requirement. Both jurisdictions require a 60 inch barrier independently. The separate question of a powered safety cover accepted IN LIEU OF barrier requirements is a different rule in different jurisdictions.
Verified against Cochise County Resolution 26-23 Exhibit A and the Sierra Vista codified UDO on 2026-09-10.
Authority: Cochise County Zoning Regulations Sec. 2.51.140 and Resolution 26-23 Exh. A; Sierra Vista UDO Sec. 151.04.009(E), Ord. 2019-007. Verified 2026-09-10. Evidence grade: VERIFIED. Read from the adopting ordinance or the published code section.
Can a powered safety cover replace the pool fence in Southern Arizona?
Only partly, and only in some jurisdictions. Pima County and Santa Cruz County accept an ASTM F1346 powered safety cover in lieu of the listed barrier requirements. Under A.R.S. 36-1681(C)(2) a cover is one of several paths that replace the interior barrier where the house forms part of the enclosure. It is not a substitute for the perimeter barrier.
This is one of the most commonly oversold claims in residential pool sales, so it is worth separating the three different things people mean by it.
ONE. Cover accepted in lieu of the barrier requirements, by local adoption. Pima County’s adopted amendment states that a powered ASTM F1346 cover exempts the pool from the listed barrier requirements. Santa Cruz County Zoning and Development Code Section 1600 accepts a safety cover complying with ASTM F-1346 as an alternative to the enclosure, and states the performance criteria in its own text: withstands at least 275 pounds, carries proper warning labels, has no openings greater than 4 inches, and has a locking or latching device or requires a minimum force of 40 pounds to open. These are real local allowances and they are jurisdiction specific. Most other jurisdictions in the four-county region have not been confirmed to accept one, so a design that depends on this needs the AHJ confirmed first.
TWO. Cover as one of the paths under A.R.S. 36-1681(C). Where the wall of the residence forms part of the pool enclosure, subsection (C) offers several compliance paths, and a motorized safety cover is one of them. Santa Cruz County’s Section 1600(C) spells out its version: an interior barrier at least FOUR feet high, or a motorized safety pool cover requiring no manual operation other than a key switch, plus self-latching devices on all doors with direct access, plus emergency escape and rescue windows from sleeping rooms latched not less than 54 inches above the floor. That path replaces the residence-side barrier. It does not replace the perimeter barrier around the property.
THREE. The claim that a cover means no fence. That is wrong everywhere in the region. No jurisdiction verified in this project removes the perimeter barrier because a cover exists.
One more thing worth saying out loud to a homeowner. A cover only protects while it is closed. A barrier protects while nobody is thinking about it. The jurisdictions that accept covers in lieu of barrier requirements are accepting a device that depends on an adult operating it correctly every single time.
Correction. The sales claim that a powered safety cover removes the requirement for a pool fence.
Authority: A.R.S. 36-1681(C)(2); Pima County 2024 ISPSC amendment; Santa Cruz County Zoning and Development Code Sec. 1600; ASTM F1346. Verified 2026-09-10. Primary source. Evidence grade: VERIFIED. Read from the adopting ordinance or the published code section.