What building code does Idaho use?
Idaho currently enforces International Building Code, 2018 edition (statewide 2020 code cycle). Cities and counties in Idaho may adopt local amendments.
Adopted codes — 2020 cycle
| Scope | Code | Edition |
|---|---|---|
| Building | International Building Code | 2018 |
| Residential | Idaho Residential Code | 2020 |
| Fire | International Fire Code | 2018 |
| Mechanical | International Mechanical Code | 2018 |
| Energy | Idaho Energy Conservation Code | 2020 |
| Existing Building | International Existing Building Code | 2018 |
| Fuel Gas | International Fuel Gas Code | 2018 |
Get this data as JSON
curl https://codes.submittal.app/api/v1/states/idaho.jsonEvery page on this site is backed by the open building-codes dataset (CC BY 4.0). Source: ICC code-adoption records, retrieved 2026-04-28.