Tremonton, Utah has adopted: 2024 International Building Code (IBC), including Appendices C and J — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(a); supersedes the 2021 edition previously listed here. Tremonton's own Building Criteria PDF (live-checked 2026-07-16, still hosted at the same URL, last modified April 2024) still lists '2021 International Building Code' and has not been updated to reflect the 7/1/2026 statewide edition change — the statute controls over the lagging city document.; 2021 International Residential Code (IRC) — REMAINS CURRENT; Utah Code § 15A-2-103(1)(b) did NOT change this edition in the 7/1/2026 statewide amendment. Consistent with Tremonton's own Building Criteria document.; Appendix AQ of the 2021 IRC — statewide per Utah Code § 15A-2-103(1)(c); not itemized in Tremonton's own Building Criteria document, added here per statute.; 2021 International Fire Code (IFC) — per Tremonton's own Building Criteria document; NOTE: the IFC is adopted under Utah Code Title 15A Chapter 5, not § 15A-2-103 (which governs the IBC/IRC/IPC/IMC/IFGC/IECC/IEBC/NEC/residential-ISPSC/MBI editions listed in this array) — § 15A-2-103 does not itself adopt or list an IFC edition, so this entry is unaffected by the 7/1/2026 § 15A-2-103 amendment.; 2024 International Fuel Gas Code (IFGC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(f); supersedes the 2021 edition. Tremonton's own Building Criteria document (live-checked 2026-07-16) still lists '2021 International Fuel Gas Code' and has not been updated.; 2024 International Mechanical Code (IMC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(e); supersedes the 2021 edition. Tremonton's own Building Criteria document (live-checked 2026-07-16) still lists '2021 International Mechanical Code' and has not been updated.; 2024 International Plumbing Code (IPC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(d); supersedes the 2021 edition. Tremonton's own Building Criteria document (live-checked 2026-07-16) still lists '2021 International Plumbing Code' and has not been updated.; 2021 International Property Maintenance Code (IPMC) — per the same document; not adopted or superseded by § 15A-2-103, which does not list an IPMC edition, so this entry is unaffected by the 7/1/2026 amendment; 2024 International Energy Conservation Code (IECC), single unsplit statewide edition — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(h); supersedes the 2021 edition. Tremonton's own Building Criteria document (live-checked 2026-07-16) still lists '2021 Energy Conservation Code' and has not been updated.; 2023 National Electrical Code (NEC) — CURRENT statewide per Utah Code § 15A-2-103(1)(g); UNCHANGED by the 7/1/2026 amendment (2023 has been the statewide NEC edition since before this cycle). Tremonton's own Building Criteria document (live-checked 2026-07-16, still hosted at the same URL) lists '2020 National Electrical Code,' which is NOT a valid statewide-adopted edition and has not been corrected by the City — the statute controls. Confirm the currently enforced NEC edition directly with the Building Department before relying on the City's own document for a live project.; 1997 Edition of the Uniform Code for the Abatement of Dangerous Buildings — per the same document; not governed by § 15A-2-103; 2017 Edition of the ICC/ANSI A117.1 Standard for Accessibility — per the same document; not governed by § 15A-2-103; 2024 International Existing Building Code (IEBC) — statewide per Utah Code § 15A-2-103(1)(i); not itemized in Tremonton's own Building Criteria document, added here per statute since the City's own materials omit it.; Residential provisions of the 2024 International Swimming Pool and Spa Code (ISPSC) — statewide per Utah Code § 15A-2-103(1)(n); not itemized in Tremonton's own Building Criteria document, added here per statute since the City's own materials omit it.; MBI 1200 and MBI 1205 (manufactured/modular construction standards) — statewide per Utah Code § 15A-2-103(1)(o); not itemized in Tremonton's own Building Criteria document, added here per statute since the City's own materials omit it.; NOTE (2026-07-16 re-verification): Utah Code § 15A-2-103, version effective 7/1/2026 (superseded 1/1/2027), took effect 15 days before this re-verification. IBC/IPC/IMC/IFGC/IECC/IEBC/residential ISPSC are now 2024 statewide; IRC (2021) and NEC (2023) did NOT change from the prior cycle. Tremonton's own Building Criteria PDF (tremontoncity.gov/wp-content/uploads/2024/04/BUILDING-DESIGN-CRITERIA.pdf) was re-fetched live 2026-07-16 and still lists 2021 IBC/IFGC/IMC/IPC/'2021 Energy Conservation Code' and an outright incorrect '2020 National Electrical Code' — none of these have been updated by the City to reflect the statewide 7/1/2026 transition or the pre-existing 2023 NEC requirement. The statute is cited directly as governing throughout; the City's lagging document is preserved above as recorded history, not deleted.. Local amendments apply — see the Tremonton overview page for the full list.