Utah plumbing code: which edition applies and what it requires
Utah uses the International Plumbing Code (IPC). The current edition is 2021 IPC, effective 2023-07-01, adopted by the Utah Legislature / Uniform Building Code Commission; admin DOPL and enforced by the local authority having jurisdiction (AHJ).
Utah plumbing code at a glance
| Adopted code | Utah State Construction Code (Title 15A), adopting the IPC |
|---|---|
| Code family | IPC |
| Current edition | 2021 IPC |
| Effective date | 2023-07-01 |
| Adopting authority | Utah Legislature / Uniform Building Code Commission; admin DOPL |
| Trap seal protection | Addressed in Chapter 10 (Traps); barrier-type floor drain devices conform to ASSE 1072 (IPC 1002.4.1.4). |
| Waterless trap seal acceptance | A barrier-type floor drain trap seal protection device (ASSE 1072) is a code-listed method under IPC 1002.4.1.4, recognized alongside trap primers. Acceptance for a specific install rests with the AHJ. |
| Local amendments / enforcement | Statewide (15A-3 Part 3 amendments); limited local authority |
This page summarizes how Utah adopts and applies its plumbing code. It is a reference for planning, not legal or code-compliance advice. Always confirm current requirements with the adopted code text and your local AHJ.
Does Utah use the IPC or the UPC?
Utah uses the IPC. Its plumbing code is based on the International Plumbing Code published by the ICC, not the Uniform Plumbing Code.
The adopted code is the Utah State Construction Code (Title 15A), adopting the IPC. It takes the IPC as its base and may layer state amendments on top, so a cited section refers to the state-adopted edition with the IPC as the underlying model.
What edition of the plumbing code does Utah use, and when did it take effect?
Utah's current edition is 2021 IPC, effective 2023-07-01, adopted by the Utah Legislature / Uniform Building Code Commission; admin DOPL.
Codes update on a multi-year cycle, and an adopted-but-not-yet-effective edition can circulate near a changeover. Confirm which edition your project falls under by its permit date and your local jurisdiction.
How do local jurisdictions affect Utah's plumbing code?
Utah's code is the statewide baseline, but local jurisdictions enforce it and may add amendments. The local authority having jurisdiction (AHJ) resolves how it applies to a specific project.
Statewide (15A-3 Part 3 amendments); limited local authority. Confirm any local amendments and the accepted trap-seal methods with your city or county building department before relying on a provision.
What does the plumbing code require for floor drains and trap seals?
Floor drains rely on a trap, and the code requires that trap seal to be maintained. A floor drain that receives little water can lose its seal to evaporation, which opens a path for sewer gas, odors, and pests.
To prevent that, codes recognize trap seal protection methods. The two most common are a trap seal primer (which adds water to the trap) and a barrier-type floor drain trap seal protection device (which provides a mechanical seal). The right approach depends on the drain, the space, and the AHJ.
In Utah, that requirement sits in the traps chapter of the adopted code (Chapter 10). The IPC lists a barrier-type floor drain trap seal protection device conforming to ASSE 1072 as an accepted method under Section 1002.4.1, alongside trap primers and deeper-seal traps.
Are barrier-type (ASSE 1072) trap seals allowed under Utah's code?
Yes. The IPC lists a barrier-type floor drain trap seal protection device (conforming to ASSE 1072) as one of the methods for protecting a floor-drain trap seal from evaporation, alongside trap primers (IPC 1002.4.1.4).
ASSE 1072 is the standard titled "Performance Requirements for Barrier Type Floor Drain Trap Seal Protection Devices." Because it is a co-equal listed method, a barrier-type device can be used in place of a trap primer where a floor-drain trap is subject to evaporation. Acceptance for a specific project rests with the AHJ.
Do I need a permit to add a floor-drain trap seal in Utah?
Usually not for the device itself, but always confirm with your local authority having jurisdiction.
A drop-in barrier-type trap seal device generally does not require a plumbing permit because it does not alter any piping, similar to changing a drain grate. On new construction or an already-permitted renovation, include it in the plumbing specifications.
In Utah, plumbing permits and inspections run through Utah Legislature and the local building department, and a licensed plumber pulls permits for plumbing work. Licensing rules and reciprocity vary, so confirm them with the authority or your local jurisdiction.
Where can I read Utah's plumbing code?
The adopting authority and code text are linked below. Always confirm current requirements against the adopted code and your local AHJ.
Where Green Drain fits. Green Drain is a barrier-type waterless trap seal for floor drains. It is cUPC listed through IAPMO (File No. 9301) and tested to ASSE 1072-2020, the standard this code references for these devices. For a floor drain at risk of a dry trap, it is one code-recognized way to keep the trap seal intact, and it works alongside the existing P-trap rather than replacing it.
Acceptance for any specific installation rests with your local AHJ. See Green Drain certifications for listing details, or browse waterless trap seals by drain size.
Protecting floor drains in Utah?
Find the right waterless trap seal for your drain size, or talk to our team about a project.