Utah

10 adopted codes · 33 cities tracked

Complete GuideEdition 2021

State Building Authority

Mandatory Codes (10)

IBC2021

International Building Code

ICC·Building

IBC 2021 — Statewide, effective July 1, 2025

IEBC2021

International Existing Building Code

ICC·Existing Buildings

IEBC 2021 — Statewide existing building code

IECC2021

International Energy Conservation Code

ICC·Energy

IECC 2021 — Statewide energy conservation code

IFGC2021

International Fuel Gas Code

ICC·Fuel Gas

IFGC 2021 — Statewide fuel gas code

IMC2021

International Mechanical Code

ICC·Mechanical

IMC 2021 — Statewide mechanical code

IPC2021

International Plumbing Code

ICC·Plumbing

IPC 2021 — Statewide plumbing code

IRC2021

International Residential Code

ICC·Residential

IRC 2021 — Statewide residential code

ISPSC2021

International Swimming Pool and Spa Code

ICC·Swimming Pools

ISPSC 2021 — Swimming pool and spa code

IWUIC2006

International Wildland-Urban Interface Code

ICC·Wildland Interface

IWUIC 2006 — Utah Wildland Urban Interface Code (state-specific edition)

NFPA 702023

National Electrical Code

NFPA·Electrical

NEC (NFPA 70) 2023 — Statewide electrical code

Important Notes

Utah spans from 2,178 ft (Beaver Dam Wash) to 13,534 ft (Kings Peak). Key hazards: EARTHQUAKE — Wasatch Fault runs through the most populated corridor (Salt Lake City, Provo, Ogden); SDC D; major earthquake overdue. SNOW — extreme snow loads up to 429 psf in mountains; USU maintains authoritative snow load map. WILDFIRE — extensive WUI zones in foothills and mountain communities; 2006 Utah WUI Code adopted statewide. FLOOD — flash flooding in desert areas and spring snowmelt flooding. EXPANSIVE SOILS — bentonite clay in many areas. LIQUEFACTION — risk along Wasatch Front during seismic events. AVALANCHE — risk in mountain communities. INVERSION — winter air quality inversions in valleys affect HVAC design.