Wisconsin 2025 Regular Session Status: To Executive 9 R cosponsors

AB 450 — Relating to: applicability of the commercial building code to certain buildings. (FE)

Last action — Failed to pass notwithstanding the objections of the Governor pursuant to Joint Rule 82

  1. ✓
    Introduced
  2. ✓
    In Committee
  3. ✓
    Passed Assembly
  4. ✓
    Passed Senate
  5. 5
    To Executive
  6. 6
    Enacted

This bill has been sent to the executive. Introduced September 25, 2025. It awaits signature.

Vetoed by Governor Tony Evers (Democratic) on December 05, 2025.

Next likely step: the executive signs it into law or issues a veto.

Odds of enactment

Low chance

Based on the sponsor, cosponsors, and committee posture, this bill has a low chance of becoming law.

Upgrade to see the exact probability and what's driving it.

A statistical estimate from our own model of past outcomes — an insight, not a guarantee. Policymaking is volatile.

Prognosis

Likely to advance 74% · moderate confidence

  • To Executive

    Current position in the legislative process.

  • 15 sponsors

    1 primary, 14 co-sponsors signed on.

  • Single-party support

    Sponsorship is currently within one party (9 R).

  • Cleared a recorded vote

    Passed 4 recorded votes so far.

Based on stage, sponsorship breadth, committee status, recorded votes, and cross-state momentum — a description of the observable signals, not a prediction.

Summary

An Act to create 101.02 (26) of the statutes;

Bill Text

What changed in the latest version

16 added · 40 removed

Plain-language change summary

The recent amendments to Assembly Bill 450 specify that the rules for commercial building codes in Wisconsin will apply to public buildings if their plans are submitted for review by April 1, 2026. Additionally, the code will now reference an updated version of the International Building Code from 2021 instead of the previous 2015 version. This change is important because it aligns Wisconsin’s building standards with newer regulations, which may improve safety and modernize construction practices. However, it may also impact the costs associated with developing and maintaining these structures.

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- 2026 LEGISLATURE LRB-4587/1 KP:wlj ASSEMBLY BILL 450 September 25, 2025 - Introduced by Representatives P ENTERMAN , KREIBICH , KNODL , PIWOWARCZYK , M URPHY , MELOTIK , BROOKS , ALLEN and W ITTKE, cosponsored by Senators H UTTON , NASS, WANGGAARD , FEYEN, JACQUE and TESTIN.
Date of enactment:
Referred to Committee on Housing and Real Estate.
Assembly Bill 450 Date of publication*:
A N A CT to create 101.02 (26) of the statutes;
WISCONSIN ACT A N A CT to create 101.02 (26) of the statutes;
Analysis by the Legislative Reference Bureau Under this bill, the commercial building code rules promulgated by the Department of Safety and Professional Services and in effect on August 1, 2025, apply to a public building, public structure, or place of employment if the plans for the public building, public structure, or place of employment are submitted for examination for compliance with the commercial building code no later than April 1, 2026.
public building, public structure, or place of employ- The people of the state of Wisconsin, represented in sen- ate and assembly, do enact as follows:
Before September 1, 2025, DSPS’s commercial building code rules incorporated by reference the 2015 International Building Code;
ment if the plans of the public building, public structure, SECTION 1.
however, effective September 1, 2025, the commercial building code rules incorporate by reference the International Building Code.
101.02 (26) of the statutes is created to or place of employment are submitted to the department read:
Because this bill may increase or decrease, directly or indirectly, the cost of the development, construction, financing, purchasing, sale, ownership, or availability of housing in this state, the Department of Administration, as required by law, will prepare a report to be printed as an appendix to this bill.
or, if the city, village, town, or county within which the 101.02 (26) Chapters SPS 361 to 366, Wis.
For further information see the state and local fiscal estimate, which will be printed as an appendix to this bill.
The people of the state of Wisconsin, represented in senate and assembly, do enact as follows:
- 2026 Legislature - 2 - LRB-4587/1 KP:wlj ASSEMBLY BILL 450 SECTION 1 S ECTION 1.
101.02 (26) of the statutes is created to read:
101.02 (26) Chapters SPS 361 to 366, Wis.
Code, in effect on August 1, 2025, apply to a public building, public structure, or place of employment and s.
public building, public structure, or place of employ- Code, in effect on August 1, 2025, apply to a public ment is to be located is authorized to perform examina- building, public structure, or place of employment and s.
SPS 361.03 (7), Wis.
tions under s.
101.12, that city, village, town, or county, SPS 361.03 (7), Wis.
Code, does not apply to the public building, public structure, or place of employment if the plans of the public building, public structure, or place of employment are submitted to the department or, if the city, village, town, or county within which the public building, public structure, or place of employment is to be located is authorized to perform examinations under s.
Code, does not apply to the no later than April 1, 2026.
101.12, that city, village, town, or county, no later than April 1, 2026.
* Section 991.11, ISCONSINSTATUTES:
(END)
Effective date of acts.
“Every act and every portion of an act enacted by the legislature over the gov- ernor's partial veto which does not expressly prescribe the time when it takes effect shall take effect on the day after its date of publication.”
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Action History

  1. Failed to pass notwithstanding the objections of the Governor pursuant to Joint Rule 82

  2. Placed on calendar 5-12-2026 pursuant to Joint Rule 82 (2)(a)

  3. Report vetoed by the Governor on 12-5-2025

  4. Presented to the Governor on 12-4-2025

  5. Report correctly enrolled on 11-19-2025

  6. Received from Senate concurred in

  7. Ordered immediately messaged

  8. Read a third time and concurred in, Ayes 20, Noes 13

  9. Rules suspended to give bill its third reading

  10. Ordered to a third reading

  11. Read a second time

  12. Placed on calendar 11-18-2025 pursuant to Senate Rule 18(1)

  13. Available for scheduling

  14. Report concurrence recommended by Committee on Licensing, Regulatory Reform, State and Federal Affairs, Ayes 3, Noes 2

  15. Executive action taken

  16. Public hearing held

  17. Fiscal estimate received

  18. Read first time and referred to committee on Licensing, Regulatory Reform, State and Federal Affairs

  19. Received from Assembly

  20. Ordered immediately messaged

  21. Read a third time and passed

  22. Rules suspended

  23. Ordered to a third reading

  24. Decision of the Chair upheld, Ayes 54, Noes 41

  25. Decision of the Chair appealed

  26. Point of order that Assembly Substitute Amendment 1 not germane under Assembly Rule 54 (3)(f) well taken

  27. Assembly Substitute Amendment 1 offered by Representative Haywood

  28. Read a second time

  29. Fiscal estimate received

  30. Referred to calendar of 10-7-2025

  31. Report passage recommended by Committee on Housing and Real Estate, Ayes 9, Noes 5

  32. Executive action taken

  33. Assembly Amendment 1 offered by Representative Clancy

  34. Public hearing held

  35. Senator Kapenga added as a cosponsor

  36. Representatives Steffen and B. Jacobson added as coauthors

  37. Read first time and referred to Committee on Housing and Real Estate

  38. Introduced by Representatives Penterman, Kreibich, Knodl, Piwowarczyk, Murphy, Melotik, Brooks, Allen and Wittke; cosponsored by Senators Hutton, Nass, Wanggaard, Feyen, Jacque and Testin

Sponsors

Sponsorship breakdown

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1 sponsors · 14 co-sponsors · 117 not signed on · 50 voted No

Sponsors (1)

Co-sponsors (14)

Not signed on (117)

117 members have not signed on to this bill.

Show all 117 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Votes

Read a third time and concurred in

Passed 20 Yea · 13 Nay
Party YeaNayPresentNot Voting
Republican 18000
Unaffiliated 1200
Democrat 11100
Total 201300
% of votes cast 61%39%0%0%
How each member voted (33)
Member Party Vote
DASSLER-ALFHEI — Yea
HABUSH SINYKIN — Nay
JOHNSON — Nay
Carpenter, Tim Democrat Nay
Drake, Dora Democrat Nay
Hesselbein, Dianne Democrat Nay
Keyeski, Sarah Democrat Nay
Larson, Chris Democrat Nay
Pfaff, Brad Democrat Yea
Ratcliff, Melissa Democrat Nay
Roys, Kelda Democrat Nay
Smith, Jeff Democrat Nay
Spreitzer, Mark Democrat Nay
Wall, Jamie Democrat Nay
Wirch, Robert Democrat Nay
Bradley, Julian Republican Yea
Cabral-Guevara, Rachael Republican Yea
Felzkowski, Mary Republican Yea
Feyen, Dan Republican Yea
Hutton, Rob Republican Yea
Jacque, André Republican Yea
Jagler, John Republican Yea
James, Jesse Republican Yea
Kapenga, Chris Republican Yea
LeMahieu, Devin Republican Yea
Marklein, Howard Republican Yea
Nass, Steve Republican Yea
Quinn, Romaine Republican Yea
Stafsholt, Rob Republican Yea
Testin, Patrick Republican Yea
Tomczyk, Cory Republican Yea
Wanggaard, Van Republican Yea
Wimberger, Eric Republican Yea

Official roll call →

Decision of the Chair upheld

Passed 54 Yea · 41 Nay · 4 Other
Party YeaNayPresentNot Voting
Republican 53000
Democrat 03904
Unaffiliated 1200
Total 544104
% of votes cast 55%41%0%4%
How each member voted (99)
Member Party Vote
JOHNSON — Nay
MOORE OMOKUNDE — Nay
SPEAKER — Yea
Anderson, Clinton Democrat Not Voting
Andraca, Deb Democrat Nay
Arney, Margaret Democrat Nay
Bare, Mike Democrat Nay
Billings, Jill Democrat Nay
Brown, Brienne Democrat Nay
Clancy, Ryan Democrat Nay
Cruz, Angelina Democrat Nay
DeSanto, Karen Democrat Nay
DeSmidt, Ben Democrat Nay
Doyle, Steve Democrat Nay
Emerson, Jodi Democrat Nay
Fitzgerald, Joan Democrat Nay
Goodwin, Russell Democrat Nay
Haywood, Kalan Democrat Nay
Hong, Francesca Democrat Nay
Hysell, Andrew Democrat Nay
Jacobson, Jenna Democrat Nay
Joers, Alex Democrat Nay
Kirsch, Karen Democrat Nay
Madison, Darrin Democrat Nay
Mayadev, Renuka Democrat Nay
McCarville, Maureen Democrat Nay
McGuire, Tip Democrat Nay
Miresse, Vincent Democrat Nay
Neubauer, Greta Democrat Not Voting
Ortiz-Velez, Sylvia Democrat Nay
Palmeri, Lori Democrat Nay
Phelps, Christian Democrat Nay
Prado, Priscilla Democrat Nay
Rivera-Wagner, Amaad Democrat Nay
Roe, Ann Democrat Nay
Sheehan, Joe Democrat Nay
Sinicki, Christine Democrat Nay
Snodgrass, Lee Democrat Nay
Spaude, Ryan Democrat Nay
Stroud, Angela Democrat Nay
Stubbs, Shelia Democrat Nay
Subeck, Lisa Democrat Nay
Taylor, Sequanna Democrat Nay
Tenorio, Angelito Democrat Not Voting
Udell, Randy Democrat Nay
Vining, Robyn Democrat Not Voting
Allen, Scott Republican Yea
Armstrong, David Republican Yea
August, Tyler Republican Yea
Behnke, Elijah Republican Yea
Born, Mark Republican Yea
Brill, Lindee Republican Yea
Brooks, Robert Republican Yea
Callahan, Calvin Republican Yea
Dallman, Alex Republican Yea
Dittrich, Barbara Republican Yea
Donovan, Bob Republican Yea
Duchow, Cindi Republican Yea
Franklin, Benjamin Republican Yea
Goeben, Joy Republican Yea
Green, Chanz Republican Yea
Gundrum, Rick Republican Yea
Gustafson, Nate Republican Yea
Hurd, Karen Republican Yea
Jacobson, Brent Republican Yea
Kaufert, Dean Republican Yea
Kitchens, Joel Republican Yea
Knodl, Daniel Republican Yea
Kreibich, Rob Republican Yea
Krug, Scott Republican Yea
Kurtz, Tony Republican Yea
Maxey, Dave Republican Yea
Melotik, Paul Republican Yea
Moses, Clint Republican Yea
Murphy, David Republican Yea
Mursau, Jeffrey Republican Yea
Nedweski, Amanda Republican Yea
Neylon, Adam Republican Yea
Novak, Todd Republican Yea
O'Connor, Jerry Republican Yea
Penterman, William Republican Yea
Petersen, Kevin Republican Yea
Piwowarczyk, Jim Republican Yea
Pronschinske, Treig Republican Yea
Rodriguez, Jessie Republican Yea
Snyder, Patrick Republican Yea
Sortwell, Shae Republican Yea
Spiros, John Republican Yea
Steffen, David Republican Yea
Summerfield, Rob Republican Yea
Swearingen, Rob Republican Yea
Tittl, Paul Republican Yea
Tranel, Travis Republican Yea
Tucker, Duke Republican Yea
Tusler, Ron Republican Yea
VanderMeer, Nancy Republican Yea
Wichgers, Chuck Republican Yea
Wittke, Robert Republican Yea
Zimmerman, Shannon Republican Yea

Official roll call →

Subjects

public-safety housing
Cross-referencing the record. Reading this bill against every other bill in the corpus by meaning, not keywords. Only the first open is slow. It’s instant for you after this. Matching · Ranking · Engrossing

Frequently asked questions

What does AB 450 do?
An Act to create 101.02 (26) of the statutes;
Who sponsors AB 450?
AB 450 is sponsored by Hutton, Nass, Wanggaard, Feyen, Jacque, Testin, Penterman, William (Republican), Kreibich, Rob (Republican), Knodl, Daniel (Republican), Piwowarczyk, Jim (Republican), Murphy, David (Republican), Melotik, Paul (Republican), Brooks, Robert (Republican), Allen, Scott (Republican), and Wittke, Robert (Republican).
What is the current status of AB 450?
This bill has been sent to the executive. Introduced September 25, 2025. It awaits signature.
Where can I track AB 450?
Track AB 450 free on One Click Politics — get push/email alerts when it moves.

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