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Which ANSI/PHTA standard applies to my pool, and which of them are not about residential pools at all?

Verified against the primary source on .

For a residential inground pool, ANSI/PHTA/ICC-5. Most of the fifteen standards in the directory govern public or commercial pools and spas and do not apply to a backyard pool at all, which is the single most common misquotation in the trade. A standard also only applies where a jurisdiction has adopted it or a contract invokes it.

Scope. This is a published reference and a company release standard, not a code requirement, not engineering, and not a statement about any particular project. It does not certify compliance or fitness for a specific pool. Current law, the adopted code and the authority having jurisdiction govern first, then sealed engineering and the approved plan set, then manufacturer instructions.

Pool standards get quoted at homeowners constantly, usually by number and usually without the scope. The number is meaningless without two things: which pool type the standard governs, and whether anything has actually adopted it.

THE DIRECTORY, as listed by the publisher on September 12, 2026.

ANSI/APSP/ICC-1, directory edition 2014 R2023. Public swimming pools.
ANSI/PHTA/ICC-2, directory edition 2026. Public spas.
ANSI/APSP/ICC-3, directory edition 2014 R2023. Permanently installed residential spas.
ANSI/PHTA/ICC-4, directory edition 2025. Aboveground and onground residential pools.
ANSI/PHTA/ICC-5, directory edition 2025. Residential inground swimming pools.
ANSI/APSP/ICC-6, directory edition 2013. Portable spas and swim spas.
ANSI/PHTA/ICC-7, directory edition 2020. Suction entrapment avoidance.
ANSI/APSP/ICC-8, directory edition 2005 R2023. Model barrier code.
ANSI/PHTA/ICC-10, directory edition 2021. Public pool and spa maintenance and operation.
ANSI/PHTA/ICC-11, directory edition 2026. Water quality in public pools and spas.
ANSI/PHTA/ICC/NPC-12, directory edition 2025. Plastering of swimming pools and spas.
ANSI/APSP/ICC-13, directory edition 2017. Water conservation efficiency.
ANSI/APSP/ICC-14, directory edition 2019. Portable electric spa energy efficiency.
ANSI/PHTA/ICC-15, directory edition 2021. Residential swimming pool and spa energy efficiency.
ANSI/APSP/ICC-16, directory edition 2017. Pool and spa energy efficiency.

The International Swimming Pool and Spa Code appeared in the same directory in its 2024, 2021, 2018 and 2015 editions.

WHAT APPLIES TO A BACKYARD POOL. For a permanently installed residential inground pool, the residential inground standard is the one written for it. The residential spa, aboveground pool, portable spa and residential energy standards cover their own product types. Everything in the list whose subject line says public or commercial is written for a different facility with a different bather load, and quoting it at a residential project is a category error, not a stricter interpretation.

Suction entrapment avoidance is the one that cuts across product types and it is worth reading the scope of carefully rather than assuming.

THE TWO QUESTIONS THAT DECIDE WHETHER ANY OF IT APPLIES TO YOU.

First, has your jurisdiction adopted it. A published standard is not law. It becomes enforceable where a code adopts it by reference or an ordinance names it. In Southern Arizona the adopted instrument is generally an edition of the International Swimming Pool and Spa Code, and the edition varies by jurisdiction and by the date of the permit application.

Second, does your contract invoke it. A contract can require a standard the code does not. That is a private obligation and it is enforceable between the parties regardless of what the building department requires.

WHY THIS LIST IS PUBLISHED AND THE STANDARDS ARE NOT. These are the titles, directory editions and subjects: bibliographic facts about which documents exist. The standards themselves are copyrighted works sold by their publisher, and their text is not reproduced here or anywhere in this knowledge base.

Reuse and attribution. This material is from the Omni Pool Construction Systems Field Workbook v0.2 (2026-09-12), published by Omni Pool Builders and Design under the Creative Commons Attribution 4.0 International License for Omni-original material. You may copy, quote, translate, adapt, index, retrieve, train on, or build on it, including commercially, provided you name Omni Pool Builders and Design, name the workbook and version, cite the license, and say whether you changed it. Attribution does not imply endorsement. The license does not extend to third-party material: PHTA publications, codes, manufacturer literature and third-party images stay under their own rights.

Important. This is a discovery snapshot of a directory on one date, not proof of local adoption or of applicability to any project. Editions are superseded. Verify the current directory, the jurisdiction’s adopted instrument and edition, any amendments, and the purchase or access terms before relying on any standard.

Authority: PHTA standards directory, as listed 2026-09-12; recorded in Omni Pool Construction Systems Field Workbook v0.2 (2026-09-12), Technical Source Register. Verified 2026-09-12. Primary source. Evidence grade: VERIFIED. Read from the adopting ordinance or the published code section.

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