Idaho Building Code Boards
Department of Building Safety

1090 E. Watertower Street
Meridian, ID 83642
Phone: (208) 334-3951
Contact: Chris Jensen, Administrator, 208-334-3951

Current Codes and Edition Adopted:
2018 International Building Code (IBC) with amendments
2020 Idaho Energy Conservation Code (2018 International Energy Conservation Code (IECC), with Idaho amendments)
2018 Idaho Residential Code (2012 International Residential Code (IRC) Parts I, II, III, and IX with Idaho amendments)
2018 International Existing Building Code (IEBC)
Applicability (statewide, local, limited): STATEWIDE

The IBC, IRC and IEBC are adopted at the State level, local jurisdictions can amend.  Local jurisdictions cannot adopt amendments that are more restrictive than the State codes with the exception of Chapter 11 which cannot be less restrictive.  The enabling legislation does not allow one and two family dwellings to be required to have automatic sprinklers.   

Here is a summary for code applicability:

Tall Mass Timber Adoption

The tall mass timber provisions went into effect in 2021.

Amendments Disadvantaging Wood Construction:

None identified. State amendments to the above codes are contained in their administrative rules, IDAPA 07.03.01 Rules of Building:

Next Update Cycle:

The codes were updated to the 2018 versions on January 1, 2021. Contact: (208) 332-7137


Page last updated: January 2022