Which edition of the electrical code applies to a pool in Southern Arizona?
Verified against the primary source on .
It depends on the jurisdiction, and the spread is twelve years. Marana, Oro Valley, Sahuarita and Benson are on the 2023 NEC. Pinal County and Sierra Vista are on 2017. Santa Cruz County is on 2011. NEC Article 680 changed materially across that window, so the same pool gets a different electrical answer depending on who issues the permit.
Everyone knows the building code edition varies by jurisdiction. Almost nobody checks that the ELECTRICAL code edition varies too, and in this region it varies by more.
ADOPTED NEC EDITIONS, from each jurisdiction’s own adoption ordinance:
- Town of Marana: 2023 NEC, adopted at Ord. 2025.013.
- Town of Oro Valley: 2023 NEC, adopted at Ord. (O)25-05.
- Town of Sahuarita: 2023 NEC, adopted at Ord. No. 2026-197.
- City of Benson: 2023 NEC, adopted at Ord. 645, Exhibit C to Res. 11-2026.
- Pinal County: 2017 NEC, adopted at PCDSC 6.05.030, Ord. 121819-BCO.
- City of Sierra Vista: 2017 NEC, adopted at Sierra Vista Code Sec. 150.01.
- Santa Cruz County: 2011 NEC, adopted at Ord. 2013-03.
That is a twelve year spread between Santa Cruz County and its neighbours, and NEC Article 680 is not static across it. GFCI requirements have expanded with successive editions, reaching outlets and equipment that earlier editions did not cover. The equipotential bonding requirements around the pool perimeter have been revised. A design drawn to the 2023 code is generally safe everywhere; a design drawn to an older one and built under a newer adoption will fail inspection.
WHY THIS MATTERS MORE THAN THE BUILDING CODE EDITION DOES. A barrier built to the wrong height is visible and fixable. Electrical built to a superseded edition is buried in a deck and behind a panel cover, and the failure mode is not a correction notice.
THE PRACTICAL RULE. Design and build to the NEWEST edition in force anywhere you work, not the one your local jurisdiction happens to have adopted. It is never a violation to exceed the adopted code on this, the cost difference is small on a new build, and it removes the question entirely. That is what this project recommends and it is what we would recommend to anyone.
WHAT TO ASK. Ask which NEC edition the electrical design was drawn to, and confirm it matches or exceeds the edition your authority has adopted. A licensed electrician working in the jurisdiction will know the answer immediately. An answer of ‘the current code’ without an edition year is not an answer.
CAUTION ON ONE SOURCE. Marana’s own Pool and Spa submittal checklist, revision 3/24/2021, still cites the 2017 NEC, while Ordinance 2025.013 adopted the 2023 NEC. The ordinance controls and the checklist is stale. This is exactly the kind of drift that makes a jurisdiction’s own handout an unreliable citation and the adopting ordinance a reliable one.
Correction. The assumption that one electrical code edition applies across Southern Arizona, and reliance on Marana’s 2021 checklist, which cites a superseded NEC edition.
Important. Editions listed are those recorded in the v6 tracker as of 2026-09-10 from each jurisdiction’s adopting ordinance. Jurisdictions not listed here were not carried by the tracker and their NEC edition is unconfirmed.
Authority: Town of Marana 2023 NEC, Ord. 2025.013; Town of Oro Valley 2023 NEC, Ord. (O)25-05; Town of Sahuarita 2023 NEC, Ord. No. 2026-197; City of Benson 2023 NEC, Ord. 645, Exhibit C to Res. 11-2026; Pinal County 2017 NEC, PCDSC 6.05.030, Ord. 121819-BCO; City of Sierra Vista 2017 NEC, Sierra Vista Code Sec. 150.01; Santa Cruz County 2011 NEC, Ord. 2013-03. Verified 2026-09-10. Evidence grade: VERIFIED.