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Wisconsin · Building code

The building code in force in Wisconsin now.

Wisconsin Commercial Building Code, SPS 361-366, using 2021 ICC editions (IBC, IECC, IMC, IFGC, IEBC) with Wisconsin amendments; adopted as of Sep 1, 2025 per DSPS. Enforced by DSPS Division of Industry Services (plan review and commercial building inspection for public buildings and places of employment); delegated municipalities do plan review and inspection for certain buildings in their jurisdictions. Checked on the primary source; the state record was last reviewed 2026-11-12.

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Building code in Wisconsin

Checked on the source
In force

Wisconsin Commercial Building Code, SPS 361-366, using 2021 ICC editions (IBC, IECC, IMC, IFGC, IEBC) with Wisconsin amendments; adopted as of Sep 1, 2025 per DSPS

DSPS page lists 2021 code inserts for IBC, IEBC, IECC, IMC and IFGC, plus a UL 1738 plastic-venting amendment (SPS 365.0501(4)). Plan review is required for commercial and public buildings of 25,000 cubic feet or more, and for any school, high-hazard or three-unit-or-larger residential building.

Source: primary document

Who enforces it

DSPS Division of Industry Services (plan review and commercial building inspection for public buildings and places of employment); delegated municipalities do plan review and inspection for certain buildings in their jurisdictions

Statewide layer. County and city amendments sit on top; confirm the local office for the address.

What changes next

In force

In force; DSPS Commercial Buildings page (read Oct 24, 2026) states the CBC adopts the 2021 ICC as of Sep 1, 2025 and plans submitted on or after Nov 1, 2025 must comply, and lists SPS 365.0501(4); DSPS Jul 30, 2025 news release had said Oct 1 (CONFLICT, stays open)

What a building has to do

1 recurring duties

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.

Monthly
Accessible pool entry: a pool lift or sloped entry in place and working whenever the pool is open (pools with 300 or more linear feet of wall need two accessible entries; a spa needs one: lift, transfer wall or transfer system); the rule sets no inspection interval; a monthly check that it works and is charged is common practice2010 ADA Standards §242 and §1009; 28 CFR 36.211 · U.S. Department of Justice (enforced through complaints and lawsuits) · Checked against the source 2026-09-28.

Questions about the building code in Wisconsin

Which building code applies in Wisconsin today?

Wisconsin Commercial Building Code, SPS 361-366, using 2021 ICC editions (IBC, IECC, IMC, IFGC, IEBC) with Wisconsin amendments; adopted as of Sep 1, 2025 per DSPS. DSPS page lists 2021 code inserts for IBC, IEBC, IECC, IMC and IFGC, plus a UL 1738 plastic-venting amendment (SPS 365.0501(4)). Plan review is required for commercial and public buildings of 25,000 cubic feet or more, and for any school, high-hazard or three-unit-or-larger residential building.

Who enforces the building code in Wisconsin?

DSPS Division of Industry Services (plan review and commercial building inspection for public buildings and places of employment); delegated municipalities do plan review and inspection for certain buildings in their jurisdictions.

What changes next for the building code in Wisconsin?

Nothing is scheduled. The rule above stays in force until the state adopts a newer edition or amends the program; AHJ Radar re-checks the source weekly.

Other areas in Wisconsin

Everything in force in Wisconsin
Fire codeNFPA 1 Fire Code, 2012 edition, adopted with Wisconsin modifications as Wis. Admin. Code c…ElevatorsConveyance Safety Code, ch. SPS 318 (last updated 2020): ASME A17.1-2016/CSA B44-16, ASME …BoilersWis. Admin. Code ch. SPS 341 Boilers and Pressure Vessels; active permit to operate requir…Pools and spasWis. Admin. Code ch. ATCP 76 (DATCP) public pools and water attractions operation rule, re…Hotels and lodgingWis. Admin. Code ch. ATCP 72 Hotels, Motels and Tourist Rooming Houses, comprehensive upda…Workplace safetyFederal OSHA jurisdiction for private-sector employers; Wisconsin has no OSHA-approved Sta…

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