Building Code Updates
Verified code edition changes from the past 12 months across all jurisdictions.
Monitoring activeWatching 51 state code-adoption sources.Last checked Oct 22, 2026.
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Code update monitoring is active. Updates will appear here as building codes change across your jurisdictions.
Below: current adopted code editions for each state.
| State | IBC | IRC | IECC | NEC | IPC | ADA | State amendments |
|---|---|---|---|---|---|---|---|
| AK | 2021 | — | 2018 | 2020 | UPC 2018 | 2010 | State Fire Marshal (13 AAC 50): 2021 IBC/IFC/IMC/IFGC (2022-10-28), NEC 2020, UPC 2018. No statewide residential code; municipalities (Anchorage, Fairbanks, Juneau) adopt their own. |
| AL | 2021 | 2015 | 2015 | 2020 | 2021 | 2010 | — |
| AR | 2021 | 2021 | 2009 | 2020 | 2018 | 2010 | Building, residential and fire are the 2021 Arkansas Fire Prevention Code (effective 2023-01-01); electrical NEC 2020; plumbing 2018 Arkansas Plumbing Code; mechanical IMC 2021. |
| AZ | — | — | — | — | — | 2010 | No statewide building, residential, energy, plumbing, mechanical or electrical code: A.R.S. 11-861 and 9-802 leave adoption to counties and cities (Phoenix: 2024 PBCC with 2023 NEC, effective 2025-08-01; Tucson: 2024 I-codes and 2023 NEC effective 2026-01-01). State minimum fire code (R4-36-201) reported moved to the 2024 IFC effective 2026-04-13; dffm.az.gov and apps.azsos.gov blocked automated reads, so the IFC column is unconfirmed. |
| CA | CBC 2025 | CRC 2025 | CEC 2025 | CEC 2025 | CPC 2025 | 2010 | 2025 California Building Standards Code (Title 24), effective 2026-01-01: Part 2 Building, 2.5 Residential, 3 Electrical, 4 Mechanical, 5 Plumbing, 6 Energy, 9 Fire, 10 Existing Building, 11 CALGreen. California publishes its own Mechanical and Plumbing Codes; the IMC and IPC are not the adopted codes. |
| CO | — | — | — | 2026 | 2024 | 2010 | No statewide building, residential, existing-building, energy, fire or mechanical code: each is adopted by the city or county (DFPC 8 CCR 1507-101 covers schools, health and gaming only). Statewide: NEC 2026 (State Electrical Board, 2026-07-15), IPC 2024 and IFGC 2024 (State Plumbing Board, 2026-08-14). |
| CT | 2021 | 2021 | 2021 | 2020 | 2021 | 2010 | 2022 Connecticut State Building Code (effective 2022-10-01): 2021 IBC, IRC, IEBC, IPC, IMC, IECC, ISPSC, ICC A117.1-2017 and 2020 NEC, each with Connecticut amendments (section-level amendments in code_amendments). 2022 Connecticut State Fire Safety Code (effective 2022-10-01): IFC 2021 (Part III, construction on/after 2006-01-01) and NFPA 101 2021 (Part IV, pre-2006 construction). The Connecticut State Fire Prevention Code (NFPA 1 based) edition was not confirmed on 2026-10-21. |
| DC | 2015 | 2015 | 2015 | 2014 | 2015 | 2010 | — |
| DE | 2018 | 2018 | 2024 | 2023 | 2021 | 2010 | Plumbing: IPC 2021 with Delaware amendments (16 DE Admin 4455), statewide. Building, residential and mechanical are county-set; New Castle County uses 2024 IBC/IRC (2026-01-01) and IMC 2021. |
| FL | FBC 2023 | FBC 2023 | 2021 | 2020 | 2021 | 2010 | — |
| GA | 2024 | 2024 | 2015 | 2023 | 2024 | 2010 | State minimum standard codes: IBC, IRC, IFC, IPC, IMC, IFGC 2024 with Georgia Amendments 2026; NEC 2023; IECC 2015 with Georgia supplements; IEBC 2018 is a permissive code. IBC Chapter 11 is deleted. Section-level amendments are in code_amendments. |
| HI | 2018 | 2018 | 2018 | 2018 | UPC 2018 | 2010 | Electrical: State Electric Code is NFPA 70 2018 per ags.hawaii.gov/bcc/building-code-rules; conflicts with the counties 2022 adoption of the 2020 NEC — kept partial. |
| IA | 2024 | 2024 | 2012 | 2023 | UPC 2024 | 2010 | — |
| ID | 2018 | 2018 | 2018 | 2023 | ISPC 2017 (UPC 2015) | 2010 | — |
| IL | — | — | 2024 | — | Illinois Plumbing Code (77 IAC 890) | 2010 | No statewide building, residential, mechanical, fire or electrical code (CDB codes page; PA 103-0510 only adds a local notification duty). Statewide: 2024 IECC (effective 2025-11-30), the Illinois Plumbing Code (77 IAC 890), the Illinois Accessibility Code 2018 (71 IAC 400). OSFM rules (41 IAC 100.7) adopt NFPA 101 2015 — official text could not be read (ilga.gov TLS failure), so NFPA 101 stays unverified. Chicago has its own building and electrical codes. |
| IN | 2012 | 2018 | — | 2008 | 2006 | 2010 | — |
| KS | 2018 | 2018 | 2018 | 2020 | 2018 | 2010 | No statewide building or residential code (local adoption). Fire: Kansas Fire Prevention Code administered by the State Fire Marshal, based on the 2006 IFC/IBC with NFPA 101. A 2024 fire update is pending, no effective date. |
| KY | 2015 | 2015 | 2009 | 2023 | KY State Plumbing Code (815 KAR 20) | 2010 | Building = 2018 Kentucky Building Code (2015 IBC base); residential = 2018 Kentucky Residential Code (2015 IRC base, 815 KAR 7:125, effective 2019-01-01); mechanical IMC 2015; fire IFC 2015 (new construction per the building code); plumbing 815 KAR Ch. 20; electrical NEC 2023. Electrical inspections under 815 KAR 35:020; the NEC is adopted via 815 KAR 7:120 and 7:125 (edition unconfirmed — partial). Electrical: NEC 2023 (DHBC); residential 210.52(C), 230.67, 314.27(C) enforceable from 2026-07-15 (exempting projects with plan approval or a permit before then); GFCI 210.8(A) and 210.8(D)(8)-(11) delayed. 2026 NEC under task-force review (2026-03-18), not adopted. |
| LA | 2021 | 2021 | 2021 | 2020 | 2021 | 2010 | Fire: NFPA 101 2015 + NFPA 1 2021 + IFC 2021 (LAC 55:V.103, amended LR 52:1390); the LA State Uniform Construction Code 2021 applies to construction after 2026-07-01. |
| MA | 2021 | 2021 | 2021 | 2026 | — | 2010 | 780 CMR 10th Edition (2021 I-Codes with Massachusetts amendments, effective 2024-10-11; 9th-edition concurrency ended 2025-06-30) — section-level amendments are in code_amendments. Plumbing and fuel gas: 248 CMR 10.00 (Uniform State Plumbing Code, 2023-12-08) and 248 CMR 4.00-8.00; the IPC is not adopted. Electrical: 527 CMR 12.00 = 2026 NEC with MA amendments, effective 2026-04-24. Fire: 527 CMR 1.00 = NFPA 1 2021 with MA amendments, since 2022-12-09. Accessibility: 521 CMR (2006 edition) in place of IBC Chapter 11. Energy: base code 225 CMR 21.00; Stretch 225 CMR 22.00/23.00 and Specialized opt-in per municipality (energy_code on the municipality row). |
| MD | 2021 | 2021 | 2021 | — | 2021 | 2010 | Electrical code is adopted locally (no statewide NEC edition; Bill run 5, 2026-10-22). |
| ME | 2021 | 2021 | 2021 | 2026 | UPC 2021 | 2010 | Maine Uniform Building and Energy Code (16-642 C.M.R., effective 2025-04-07): Ch. 4 IBC 2021, Ch. 5 IEBC 2021, Ch. 6 IRC 2021, Ch. 7 IECC 2021, Ch. 8 IMC 2021 with Maine amendments (ASHRAE 62.1/62.2/90.1 2019). MUBEC must be enforced in municipalities with more than 4,000 residents (10 M.R.S. §9724); smaller municipalities may adopt it; a municipality may adopt the MUBEC Stretch Code (Appendix NA, 10 M.R.S. §9722). Plumbing: 2021 UPC with Maine amendments (Plumbers' Examining Board Ch. 4). Electrical: 2026 NEC (Electricians' Examining Board Ch. 120) for installations commencing on or after 2026-07-01. Fire: NFPA 1 2018 and NFPA 101 2018 (State Fire Marshal), NFPA 13 2016, NFPA 72 2019, NFPA 54 2021. |
| MI | 2021 | 2015 | 2021 | 2023 | 2021 | 2010 | Fire: state rule R 29.1652 adopts NFPA 1 (2006 Uniform Fire Code) only where a local fire code has not been adopted; no statewide IFC. |
| MN | 2018 | 2018 | 2012 | 2026 | UPC 2018 | 2010 | — |
| MO | — | — | — | — | — | 2010 | Missouri has no statewide building code; local adoption governs (RSMo 67.280). Use the city or county code where one is adopted; many rural areas have none. State-owned buildings follow codes set by the Office of Administration. |
| MS | 2018 | — | — | — | — | 2010 | Fire: 2024 IFC (State Fire Marshal). Building: local governments may adopt any of the three most recent IBC editions (Miss. Code 17-2-1). Residential, energy, electrical, plumbing and mechanical are local adoption — no statewide edition. |
| MT | 2024 | 2024 | 2024 | 2023 | 2024 | 2010 | 2024 IBC, IRC, IEBC, IMC and IFGC and the 2024 Uniform Plumbing Code effective 2026-09-26; NEC 2023; ICC A117.1-2017. All amended by ARM Title 24, Chapter 301. Montana adopts the Uniform Plumbing Code, not the IPC. |
| NC | 2015 | 2015 | 2015 | 2020 | 2015 | 2010 | — |
| ND | 2024 | 2024 | 2024 | 2026 | UPC 2018 | 2010 | Fire: IFC 2018 (NDAC 10-07-01, amended 2020-07-01). Electrical: NEC 2026 + NFPA 72/101/110 2024 (NDAC 24.1-02-01, from 2026-07-01). Plumbing: UPC 2018 (NDAC 62-03.1-01). |
| NE | 2018 | 2018 | 2018 | 2023 | UPC 2018 | 2010 | Mechanical is adopted locally (no statewide IMC); plumbing UPC 2018; electrical NEC 2023 (2024-08-01). |
| NH | 2024 | 2024 | 2018 | 2023 | 2024 | 2010 | RSA 155-A:1 IV: 2024 IBC, IEBC, IPC, IMC, ISPSC, IRC; 2018 IECC; 2023 NEC — each with New Hampshire amendments (Building Code Review Board, summary of 2026-07-01). Effective 2026-07-01 with a six-month concurrence to 2026-12-31. Local amendments limited to administrative matters from 2026-07-01. Fire: NFPA 1 and NFPA 101 2024 with Saf-FMO 300 amendments, effective 2026-07-27. |
| NJ | 2024 | 2024 | 2024 | 2023 | NSPC 2024 | 2010 | Uniform Construction Code subcodes adopted 2026-08-17: IBC/2024 and IRC/2024 with New Jersey amendments (N.J.A.C. 5:23-3.14, 3.21), IMC/2024, National Standard Plumbing Code/2024 (the IPC is not adopted), NEC 2023. Existing buildings: Rehabilitation Subcode, N.J.A.C. 5:23-6. Section-level amendments are in code_amendments. |
| NM | 2021 | 2021 | 2021 | 2020 | UPC 2024 | 2010 | — |
| NV | — | — | 2024 | — | — | 2010 | No statewide building code: NRS 278.580 leaves building codes to each city and county, and NRS 278.583 deems each new NEC edition approved per jurisdiction unless disapproved within 60 days. Statewide: 2024 IECC (Governor's Office of Energy, adopted 2024-08-18, revised 2025-03-12) with ASHRAE 90.1-2022. State-owned buildings (SPWD, NAC 341.045): 2024 IBC/IRC/IEBC/IECC, 90.1-2022, NEC 2023, UPC/UMC 2024. Clark County and Reno adopt their own editions. |
| NY | BCNYS 2025 | RCNYS 2025 | ECCCNYS 2025 | 2020 | PCNYS 2025 | 2010 | 2025 Uniform Code: Building, Residential, Plumbing, Mechanical, Fuel Gas, Fire, Property Maintenance and Existing Building Codes of New York State (published July 2025), effective 2025-12-31, with the 2025 Energy Code. Provisions prohibiting fossil-fuel equipment in new buildings are suspended by court order (per the Department of State, July 2026). |
| OH | 2021 | 2018 | 2021 | 2023 | 2021 | 2010 | Ohio-specific edition |
| OK | 2024 | 2024 | 2006 | 2023 | 2024 | 2010 | — |
| OR | OSSC 2025 | ORSC 2026 | OEESC 2025 | 2026 | OPSC 2026 | 2010 | 2025 Oregon Structural Specialty Code (based on the 2024 IBC, IFC and IEBC) effective 2025-10-01, mandatory 2026-04-01. 2025 Oregon Mechanical Specialty Code. 2026 Oregon Residential Specialty Code effective 2026-10-01 (Chapter 1 mandatory 2026-10-01; Chapters 2-44 mandatory 2027-04-01, the 2023 ORSC remains optional until then). 2026 Oregon Electrical Specialty Code (2026 NEC) effective 2026-10-01. 2026 Oregon Plumbing Specialty Code (2024 Uniform Plumbing Code base, not the IPC) effective 2026-10-01. 2025 Oregon Energy Efficiency Specialty Code (ASHRAE 90.1-2022). |
| PA | 2021 | 2021 | 2021 | 2020 | 2021 | 2010 | Uniform Construction Code triennial update effective 2026-01-01 adopts the 2021 I-Codes as amended. Accessibility provisions remain those of the 2018 I-Codes and ICC A117.1-2009 by court order. The IFC applies only where referenced by the IBC and IEBC. |
| RI | 2021 | 2021 | 2024 | 2023 | 2021 | 2010 | Rhode Island State Building Code (510-RICR-00-00, effective 2025-12-01): SBC-1 IBC 2021, SBC-2 IRC 2021, SBC-3 IPC 2021, SBC-4 IMC 2021, SBC-5 NEC 2023, SBC-7 IEBC 2021, SBC-8 IECC 2024, SBC-19 IFGC 2021, each with RI amendments (section-level IRC amendments in code_amendments). Fire: 450-RICR-00-00-7 NFPA 1 2021 and -8 NFPA 101 2021 (effective 2026-03-01), -10 NFPA 72 2022. |
| SC | 2021 | 2021 | 2009 | 2020 | 2021 | 2010 | — |
| SD | 2024 | — | — | 2023 | UPC 2024 | 2010 | SDCL 11-10-5/-6: 2024 IBC for buildings commenced after 2026-07-01. SDCL 11-10-12: municipalities may adopt the 2024 IRC (no statewide residential mandate). ARSD 61:15:01: 2015 IFC and 2015 IMC. ARSD 20:54:02: 2024 UPC. NEC 2023 (permits on/after 2024-11-12). No statewide energy code. No statewide residential code: SDCL 11-10-5/11-10-6 apply the 2024 IBC to non-residential buildings only (default for construction after 2026-07-01); municipalities may adopt the 2024 IRC. No mandatory energy code: IECC 2009 is a voluntary standard for new homes (SDCL 11-10-7). |
| TN | 2021 | 2018 | 2021 | 2017 | 2021 | 2010 | State Fire Marshal adopted codes effective 2025-04-17: IBC, IFC, IMC, IPC, IFGC, IEBC 2021 with Tennessee amendments; IECC 2021 for commercial buildings (2018 for one- and two-family dwellings and townhomes); IRC 2018. |
| TX | 2021 | 2021 | 2015 | 2026 | 2018 | 2010 | No statewide building, residential or mechanical code; fire for state-regulated occupancies is NFPA 1 / NFPA 101 (2021) under the State Fire Marshal and otherwise local: Local Government Code 214.212/214.216 set municipal baselines only, so the IBC/IRC/IFC/IMC values on this row are placeholders (Houston, Dallas, Austin, San Antonio, Fort Worth each adopt their own). Statewide: 2026 NEC (TDLR, 2026-09-01); 2015 IECC commercial / 2015 IRC Ch. 11 residential (SECO); TSBPE 22 TAC 367.2 adopts the 2018 UPC and 2018 IPC with the 2018 IFGC for plumbing licensing; ASHRAE 90.1-2016 for state-funded buildings only; 2012 TAS for accessibility. |
| UT | 2024 | 2021 | 2024 | 2023 | 2024 | 2010 | — |
| VA | 2021 | 2021 | 2021 | 2020 | 2021 | 2010 | — |
| VT | 2021 | — | RBES/CBES 2024 | 2023 | 2024 | 2010 | 2025 Vermont Fire & Building Safety Code (effective 2025-11-04): NFPA 101 2021, NFPA 1 2021, IBC 2021, IEBC 2021 (structural only), each with Vermont amendments (Sections 3-5). Mechanical: NFPA 1 2021 incl. NFPA 90A (no IMC). Fuel gas: NFPA 54 2021. One- and two-family dwellings: NFPA 101 2021 (no IRC). Electrical: 2025 Vermont Electrical Safety Rules = 2023 NEC (effective 2025-11-05). Plumbing: 2025 Vermont Plumbing Rules = 2024 IPC (effective 2025-11-04). Energy: RBES/CBES 2020 or 2024 (from 2026-07-14). Accessibility: Vermont Access Rules (2012) and the 2010 ADA Standards. |
| WA | 2021 | 2021 | WSEC 2021 | 2023 | UPC 2021 | 2010 | — |
| WI | 2021 | UDC (SPS 320-325) | 2021 | 2023 | WI Plumbing Code (SPS 381-387) | 2010 | SPS 361.05 (effective 2025-09-01): 2021 IBC, IEBC, IECC (commercial), IMC, IFGC with SPS 361-366 amendments; A117.1-2017 via the IBC. One- and two-family dwellings: Wisconsin Uniform Dwelling Code SPS 320-325 (state-written; the IRC is not adopted). Plumbing: Wisconsin Plumbing Code SPS 381-387 (state-written). Fire: SPS 314 adopts NFPA 1 2012 (no statewide IFC). Electrical: SPS 316 = NEC 2023 from 2026-09-01. |
| WV | 2018 | 2018 | 2015 | 2020 | 2018 | 2010 | — |
| WY | 2024 | — | — | 2026 | — | 2010 | Council Rules Ch. 1 (effective 2024-06-26): 2024 IBC, IEBC, IFC, IMC, IFGC statewide. The IRC, IPC, IECC and IPMC are incorporated only as referenced within those codes (Ch. 1 §2(a)(vi)) — no statewide residential, plumbing or energy code; Cheyenne and Casper adopt their own. NEC: the State Fire Marshal lists the 2026 NEC as adopted but no rule text or effective date was found (Electrical Board rules are an image scan) — unconfirmed; Cheyenne is on the 2023 NEC until 2027-01-01. |
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