Clearfield, 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), superseding the 2021 IBC. Clearfield's own Design Criteria and Adopted Codes document (rev. 9/29/2023, effective 7/1/2023) still lists the 2021 IBC — live-checked 2026-07-16 via direct PDF fetch of clearfield.city/wp-content/uploads/2023/10/Design-Criteria-Letterhead.pdf, confirming the city's document has NOT been updated to reflect the 7/1/2026 statewide flip. The statute controls regardless of the city document's lag.; 2021 International Residential Code (IRC) — REMAINS CURRENT; Utah Code § 15A-2-103(1)(b) did NOT change this edition in the 7/1/2026 amendment. Matches Clearfield's Design Criteria and Adopted Codes document.; Appendix AQ of the 2021 IRC — statewide per Utah Code § 15A-2-103(1)(c); not separately itemized in Clearfield's own Design Criteria and Adopted Codes document, added here per statute.; 2024 International Plumbing Code (IPC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(d), superseding the 2021 IPC. Clearfield's Design Criteria document (rev. 9/29/2023) still lists the 2021 IPC — live-checked 2026-07-16, confirming lag. The statute controls.; 2024 International Mechanical Code (IMC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(e), superseding the 2021 IMC. Clearfield's Design Criteria document (rev. 9/29/2023) still lists the 2021 IMC — live-checked 2026-07-16, confirming lag. The statute controls.; 2024 International Fuel Gas Code (IFGC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(f), superseding the 2021 IFGC. Clearfield's Design Criteria document (rev. 9/29/2023) still lists the 2021 IFGC — live-checked 2026-07-16, confirming lag. The statute controls.; 2023 National Electrical Code (NEC) — statewide-mandatory edition per Utah Code § 15A-2-103(1)(g); UNCHANGED by the 7/1/2026 amendment (the 2023 NEC baseline predates this code cycle). Clearfield's own Design Criteria document (rev. 9/29/2023) lists the 2020 NEC — one edition behind the statewide-mandatory floor, confirmed still unchanged via live PDF fetch 2026-07-16. Per Utah Code § 15A-1-204 (statewide-mandatory construction code), the 2023 NEC governs regardless of Clearfield's own document.; 2024 International Energy Conservation Code (IECC), single unsplit statewide edition — CURRENT as of 7/1/2026 per Utah Code § 15A-2-103(1)(h) (no residential/commercial split under current law). Supersedes Clearfield's own split scheme: the Design Criteria document (rev. 9/29/2023) separately cited 2021 IECC commercial provisions plus 2015 IECC residential provisions and 2015 IRC Chapter 11, Energy Efficiency, for residential energy — preserved here as history. Live-checked 2026-07-16: Clearfield's Design Criteria document still shows this pre-2024 split scheme; the statute controls.; 2024 International Existing Building Code (IEBC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(i), superseding the 2021 IEBC. Clearfield's Design Criteria document (rev. 9/29/2023) still lists the 2021 IEBC — live-checked 2026-07-16, confirming lag. The statute controls.; Residential provisions of the 2024 International Swimming Pool and Spa Code (ISPSC) — CURRENT statewide as of 7/1/2026 per Utah Code § 15A-2-103(1)(n), superseding the 2021 ISPSC. Clearfield's Design Criteria document (rev. 9/29/2023) still lists the 2021 ISPSC — live-checked 2026-07-16, confirming lag. The statute controls.; Modular Building Institute (MBI) Standards 1200 and 1205 — statewide per Utah Code § 15A-2-103(1)(o); not listed in Clearfield's own Design Criteria document, added here per statute.; NOTE: A prior commercial-permit checklist PDF (undated content, hosted under a 2021 upload path) lists 2018 IBC/IMC/IPC, 2017 NEC, 2018 IFCI, 2018 IECC as 'Current Codes' — this is superseded by the Design Criteria and Adopted Codes document (rev. 9/29/2023, effective 7/1/2023) cited above, which is the more recent and more specific authority on adopted code editions; 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. Clearfield's Design Criteria and Adopted Codes document (rev. 9/29/2023, effective 7/1/2023) was live-checked 2026-07-16 via direct PDF fetch and is confirmed still lagging — it verbatim lists 2021 IBC/IMC/IPC/IFGC/IEBC/ISPSC, 2020 NEC, and the pre-2024 split IECC scheme (2021 commercial / 2015 residential). The statewide statute controls over Clearfield's un-updated document.. Local amendments apply — see the Clearfield overview page for the full list.