| IBC — International Building Code | 2021 IBC — the 2021 International Building Code as the base of the Wisconsin Commercial Building Code, Wis. Admin. Code chs. SPS 361-366 (Wisconsin modifications to the IBC are in ch. SPS 362), EFFECTIVE 2025-09-01 with a DELAYED PLAN-COMPLIANCE DEADLINE of 2025-11-01. Adopting vehicle: Clearinghouse Rule CR 23-007, "SPS 361-366, Wisconsin Commercial Building Code", final rule text published at Wis. Admin. Register 2025 No. 836B. NOT the 2024 IBC. The edition this replaced was the 2015 IBC. *** SEE THE CODIFICATION-LAG WARNING IN THE amendments FIELD: the Legislative Reference Bureau's codified chapter PDFs for SPS 361 and SPS 362 were still serving PRE-CR-23-007 registers when this row was verified, and SPS 361.05 as served there still reads "2009". The 2021 figure here comes from the administering agency's own September 1, 2025 code inserts, not from the LRB codified text. | Wis. Admin. Code chs. SPS 361-366 (Wisconsin Commercial Building Code), ch. SPS 361.05 (Adoption of the International Codes) as amended by Clearinghouse Rule CR 23-007, "SPS 361-366, Wisconsin Commercial Building Code"; administered by the Department of Safety and Professional Services under Wis. Stat. ch. 101. Statewide.
ADOPTING/ADMINISTERING TEXT READ FIRST-HAND 2026-09-25, THREE DSPS DOCUMENTS, QUOTED VERBATIM:
(1) DSPS code insert for the building chapter, dsps.wi.gov/Documents/Programs/CommercialBuildings/SPS362Insert.pdf, headed VERBATIM: "September 1, 2025 Wisconsin Commercial Building Code, SPS 361 - SPS 366", and instructing VERBATIM: "Insert these pages into the International Building Code, 2021 Edition". THIS IS THE SENTENCE THAT FIXES THE EDITION.
(2) DSPS Commercial Buildings program page, VERBATIM: "The Wisconsin CBC will adopt the 2021 ICC as of September 1, 2025" and "Plans submitted on November 1, 2025, or after, must comply with the updated CBC."
(3) DSPS news release 2025-07-30, "Upgraded Commercial Building Code to Take Effect September 1" (dsps.wi.gov/Documents/NewsMedia/20250730CommercialBuildingCodeNewsRelease.pdf), which adopts "2021 International Building Code (IBC) standards with some Wisconsin-specific adjustments" and describes the transition off "the current 2015 code".
PRIOR STATE OF THIS ROW (corrected by run 1766): adoption_citation was 289 characters whose only quoted matter was a sentence lifted from the DSPS program WEBPAGE; amendments was EMPTY — the ONLY Wisconsin row of eight with a zero-length amendments field; source_url pointed at the program landing page Default.aspx rather than an instrument; and verified_at had been set on 2026-08-28 anyway. Verified-but-unsourced, exactly the class this sweep exists to close. · source ↗ |
| IECC — International Energy Conservation Code | COMMERCIAL: the 2021 IECC, as amended by Wis. Admin. Code ch. SPS 363 (Energy Conservation) within the Wisconsin Commercial Building Code, chs. SPS 361-366, effective 2025-09-01 (plan-compliance deadline 2025-11-01), with ASHRAE 90.1-2019 available as an alternative compliance path. RESIDENTIAL: NOT ADOPTED — no edition of the IECC governs one- and two-family dwellings in Wisconsin; energy conservation for dwellings is state-written law in Wis. Admin. Code ch. SPS 322 (Uniform Dwelling Code). | Wisconsin Commercial Building Code, Wis. Admin. Code chs. SPS 361-366, ch. SPS 363 (Energy Conservation), Dept. of Safety and Professional Services — 2021 IECC base, eff. 9/1/2025, plan-compliance deadline 11/1/2025; ASHRAE 90.1-2019 an alternative compliance path. RESIDENTIAL NON-ADOPTION: Wis. Stat. ss.101.63(1) and 101.64 (department shall adopt standards for one- and 2-family dwellings; no model code named), implemented by the Wisconsin Uniform Dwelling Code, Wis. Admin. Code ch. SPS 322 subchs. IV (Dwelling Thermal Envelope, ss.322.31-322.39) and V (Systems, ss.322.40-322.46); statutory authority ss.101.63, 101.64(1)(c), 227.11(2)(a), Stats.; statutes interpreted ss.101.63(1), 101.64, Stats. NO IECC EDITION GOVERNS ONE- AND TWO-FAMILY DWELLINGS IN WISCONSIN — the "2009 IECC" appearing on DSPS REScheck instructions and compliance certificates is a software target and a form label, NOT an incorporation by reference. · source ↗ |
| IFC — | NOT ADOPTED — no edition of the International Fire Code is in force statewide in Wisconsin. Wisconsin is an NFPA fire-code state: the statewide fire code is NFPA 1, Fire Code, 2012 edition, incorporated by reference (subject to Wisconsin modifications) by Wis. Admin. Code s. SPS 314.001, in force since 2014-09-01. A rulemaking to consider the 2024 edition of NFPA 1 was under way as of 2025-10-27 and had NOT been adopted — do not record 2024. | Wis. Admin. Code s. SPS 314.001 (Adoption and application of NFPA 1, Fire Code), verbatim: "NFPA 1, Fire Code - 2012, subject to the modifications specified in this chapter, is hereby incorporated by reference into this chapter." Statutory authority ss. 227.11(2)(a), 101.02(15)(i) and (j), and 101.14(4)(a), Stats. History: created CR 06-120 eff. 2008-03-01; amended CR 09-104 eff. 2011-01-01; amended CR 13-105 eff. 2014-09-01 (the rulemaking carrying the 2012 NFPA 1 edition). Ch. SPS 314 was formerly ch. Comm 14, before that chs. ILHR 14 and Ind 65. DSPS Fire Prevention Council packet, 2025-10-27, verbatim: "The current rules adopt and reference the 2012 edition of the National Fire Protection Association's NFPA 1, Fire Code standard." and "The review and update process will include evaluation and consideration of adopting the 2024 edition of the NFPA 1, Fire Code standard." NO INTERNATIONAL FIRE CODE ADOPTION EXISTS IN WISCONSIN — this row records a verified NON-ADOPTION, not an unresearched gap. · source ↗ |
| IMC — International Mechanical Code | 2021 IMC — as part of the Wisconsin Commercial Building Code, Wis. Admin. Code chs. SPS 361-366, EFFECTIVE 2025-09-01 with a DELAYED PLAN-COMPLIANCE DEADLINE of 2025-11-01. Established from the Department of Safety and Professional Services' own published code insert, headed "September 1, 2025 Wisconsin Commercial Building Code, SPS 361 - SPS 366", which instructs: "Insert these pages into the International Mechanical Code, 2021 Edition". NOT the 2024 IMC, AND NOT THE 2015 IMC — see the reproduction-staleness warning in the amendments field, which is the single most important thing on this row. | Wisconsin Commercial Building Code, Wis. Admin. Code chs. SPS 361-366, ch. SPS 364 (Mechanical), Dept. of Safety and Professional Services — 2021 IMC base, effective 2025-09-01, plan-compliance deadline 2025-11-01. Adopting subsection is SPS 361.05(3). VERIFIED FROM THE AGENCY'S OWN CURRENT CODE INSERTS ("Insert these pages into the International Mechanical Code, 2021 Edition", under the header "September 1, 2025 Wisconsin Commercial Building Code, SPS 361 - SPS 366"), NOT from a codified-text reproduction — the Cornell LII reproduction of SPS 361.05(3) is STALE and still prints the 2015 edition. · source ↗ |
| IPC — International Plumbing Code | NOT ADOPTED — no edition of the International Plumbing Code is in force anywhere in Wisconsin, and neither is the Uniform Plumbing Code. Plumbing is governed statewide by the state-written Wisconsin Plumbing Code, Wis. Admin. Code chs. SPS 381-387, current version effective 2023-10-01. | Wis. Stat. s.145.02 (department to prescribe plumbing rules; NO national model plumbing code is named in the statute), implemented by the Wisconsin Plumbing Code, Wis. Admin. Code chs. SPS 381-387, Dept. of Safety and Professional Services — statutory authority ss. 101.02(1)(b), 145.02(2)(a) and (b), 145.02(3)(g) and (h), 227.11(2)(a), Stats.; statutes interpreted ss. 145.02(1), 145.20(2)(i) and (5)(a), 145.24(2), Stats.; current code eff. 10/1/2023 (ch. SPS 381 formerly ch. Comm 81, renumbered under s. 13.92(4)(b)1., Stats., Register December 2011 No. 672). NO INTERNATIONAL PLUMBING CODE ADOPTION AND NO UNIFORM PLUMBING CODE ADOPTION EXISTS IN WISCONSIN — this row records a verified NON-ADOPTION, not an unresearched gap. · source ↗ |
| IRC — International Residential Code | NOT ADOPTED — no edition of the International Residential Code is in force anywhere in Wisconsin. One- and two-family dwellings are governed statewide by the state-written Wisconsin Uniform Dwelling Code, chs. SPS 320-325. | Wis. Stat. s.101.63(1) (department shall adopt rules establishing standards for construction and inspection of one- and 2-family dwellings; no model code named) and s.101.64(1)(c) (revision in consultation with the Uniform Dwelling Code Council), implemented by the Wisconsin Uniform Dwelling Code, Wis. Admin. Code chs. SPS 320-325 (rulemaking authority stated by DSPS as ss. 101.63(1), 101.64(1)(c), 227.11(2)(a)); enforcement/inspector certification s.101.66. NO INTERNATIONAL RESIDENTIAL CODE ADOPTION EXISTS IN WISCONSIN — this row records a verified NON-ADOPTION, not an unresearched gap. · source ↗ |
| NEC — National Electrical Code (NFPA 70) | 2023 NEC — NFPA 70, National Electrical Code, 2023 edition, "including all Temporary Interim Amendments and Errata prior to January 1, 2025", incorporated by reference at Wis. Admin. Code s. SPS 316.007(1)(a) as amended by Clearinghouse Rule CR 26-016. IN FORCE SINCE 2026-09-01. This SUPERSEDES the 2017 NEC, which this row carried until run 1567 (2026-09-19) closed the question run 1100 left open. | Wis. Admin. Code s. SPS 316.007(1)(a) (Adoption of standards by reference), as amended by Clearinghouse Rule CR 26-016. Instrument text as submitted, quoted verbatim from the Department of Safety and Professional Services' own legislative rule-review document with the amendment markup intact: "NFPA 70 National Electrical Code, (NEC) - 2017 2023, including all Temporary Interim Amendments and Errata prior to January 1, 2025." Where-to-inspect note, verbatim as amended: "Copies of the standards are on file in the offices office of the Department and the Legislative Reference Bureau", and copies "may be purchased from the organization listed or may be reviewed on the organization's website at no cost if the person is a registered user for the site." DSPS authority for ch. SPS 316: ss. 101.02(1), 101.82(1), 101.84(3) and (5), and 227.11(2)(a), Stats. · source ↗ |
| UDC — | Wisconsin UDC (not editioned) | Wis. Admin. Code chs. SPS 320-325 (Uniform Dwelling Code), promulgated by DSPS under Wis. Stat. s. 101.63(1) on the recommendation of the Uniform Dwelling Code Council, Wis. Stat. s. 101.62(1) · source ↗ |