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HI

Hawaii

9 adopted codes · 30 cities tracked

Complete Guide2018 International Codes with Hawaii State Amendments (IBC/IRC/IFC/IMC/IFGC/IEBC) + 2021 IECCEdition 2018Effective: 2021-04-20

State Building Authority

Hawaii State Building Code Council (Dept. of Accounting & General Services)

(808) 586-0400Official Website

Adopted Codes & Standards

International Building Code (IBC)

Statewide mandatory — State Building Code Council

2018 with Hawaii amendments

International Residential Code (IRC)

Statewide mandatory

2018 with Hawaii amendments

International Existing Building Code (IEBC)

Statewide mandatory

2018

International Energy Conservation Code (IECC)

Statewide mandatory — DBEDT Energy Office

2021 with Hawaii amendments

International Fire Code (IFC)

Statewide mandatory — State Fire Council

2018 with Hawaii amendments

International Mechanical Code (IMC)

Statewide mandatory

2018 with Hawaii amendments

International Fuel Gas Code (IFGC)

Statewide mandatory

2018 with Hawaii amendments

Uniform Plumbing Code (UPC)

Statewide mandatory — IAPMO-based (not IPC)

2021 with Hawaii amendments

National Electrical Code (NEC/NFPA 70)

County adoption — some counties on earlier editions

2020

ASCE 7 - Minimum Design Loads

Referenced by IBC — hurricane wind/seismic

2016

ICC A117.1 - Accessibility

Referenced by IBC

2017

Mandatory Codes (9)

IBC2018Amended

International Building Code

ICC·Building

Statewide via State Building Code Council. Counties must adopt within 2 years.

IEBC2018

International Existing Building Code

ICC·Existing Buildings

Statewide via State Building Code Council

IECC2021Amended

International Energy Conservation Code

ICC·Energy

Statewide — DBEDT Hawaii Energy Office coordination

IFC2018Amended

International Fire Code

ICC·Fire Safety

Adopted by State Fire Council separately

IFGC2018Amended

International Fuel Gas Code

ICC·Fuel Gas

Statewide via State Building Code Council

IMC2018Amended

International Mechanical Code

ICC·Mechanical

Statewide via State Building Code Council

IRC2018Amended

International Residential Code

ICC·Residential

Statewide via State Building Code Council

NFPA 702020

National Electrical Code

NFPA·Electrical

NEC 2020 — county adoption varies, some still on earlier editions

UPC-20212021Amended

Uniform Plumbing Code

NFPA·Building

Hawaii uses Uniform Plumbing Code (UPC/IAPMO), not IPC

Important Notes

Hawaii has 4 county jurisdictions that enforce building codes: City & County of Honolulu (Oahu), County of Maui (Maui, Molokai, Lanai), County of Hawaii (Big Island), County of Kauai (Kauai, Niihau). State Building Code Council sets minimum codes; counties must adopt within 2 years with local amendments. Key hazards: hurricanes (130-170 mph), seismic (SDC B-D), tsunami inundation zones, volcanic zones (Big Island), flood zones, tropical storms. Hawaii uses UPC (Uniform Plumbing Code) not IPC. Climate Zone 1 — only tropical zone in US.