Hawaii State Building Code based on 2018 IBC, state-amended. Enforced by State Building Code Council adopts; county building departments enforce. Checked on the primary source; the state record was last reviewed 2026-11-12.
CONFLICT: DAGS rules page lists the 2018 IBC-based State Building Code; the Council's 2025 Annual Report says 2021 IBC/IRC/IECC applied at state level by default, unamended, while counties keep amended 2018 codes. Housing emergency proclamations suspend Council updates and the county two-year deadline; counties may still update. Confirm with the county.
Source: primary document
Statewide layer. County and city amendments sit on top; confirm the local office for the address.
20th housing proclamation (signed Jul 10, 2026; re-read Oct 21, 2026) suspended HRS 107-24(c), 107-27(a), 107-28 and 107-31 through Sep 8, 2026, unless superseded; no later affordable-housing proclamation could be confirmed on the primary page, so whether the suspension continues is unconfirmed; confirm county code with the county
These apply when the building has the equipment or fits the type named. The frequency is the standard one; your local official can set a stricter one, so confirm it for the address.
Hawaii State Building Code based on 2018 IBC, state-amended. CONFLICT: DAGS rules page lists the 2018 IBC-based State Building Code; the Council's 2025 Annual Report says 2021 IBC/IRC/IECC applied at state level by default, unamended, while counties keep amended 2018 codes. Housing emergency proclamations suspend Council updates and the county two-year deadline; counties may still update. Confirm with the county.
State Building Code Council adopts; county building departments enforce.
Adoption pending, undated. 20th housing proclamation (signed Jul 10, 2026; re-read Oct 21, 2026) suspended HRS 107-24(c), 107-27(a), 107-28 and 107-31 through Sep 8, 2026, unless superseded; no later affordable-housing proclamation could be confirmed on the primary page, so whether the suspension continues is unconfirmed; confirm county code with the county
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