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Bills from the 2025–26 session

Assembly Bill 450

Applicability of the commercial building code to certain buildings. (FE)

Topics: Administration, Department of: Agency and general functions, Building, Housing, Public building, Safety and Professional Services, Department of

Vetoed by the governor

Both chambers passed it, and the governor vetoed it on Dec 5, 2025. Lawmakers did not ⁠, so it stands.

  1. Introduced, passed

    Sep 25, 2025

  2. Committee, passed

    Approved

  3. Assembly vote, passed

    Passed Oct 7, 2025

  4. Senate vote, passed

    Passed 20 to 13

  5. Governor, stopped here

    Vetoed Dec 5, 2025.

  6. Law, not reached

Latest entry in the official record, May 13, 2026: “Failed to pass notwithstanding the objections of the Governor pursuant to Joint Rule 82”

Read the governor's veto message · All vetoes this session

Read the bill

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The same bill was also filed in the Senate as SB 475. That version died when the session ended.

What it would have done

Summary by the , the Legislature's nonpartisan drafting office. It's their wording, not ours.

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. Before September 1, 2025, DSPS’s commercial building code rules incorporated by reference the 2015 International Building Code; however, effective September 1, 2025, the commercial building code rules incorporate by reference the 2021 International Building Code.

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.

Who's behind it

9 representatives are its ⁠. All 9 are Republicans.

8 more lawmakers ⁠.

See all 17 names

Authors (9)

Signed on in support (8)

What it would cost

State agencies filed a . Each opens as a PDF from the Legislature.

Versions and amendments

Every text the Legislature printed for this bill, including proposed changes. Each opens on the Legislature's site.

How lawmakers voted

There were 4 votes on this bill.

Assembly Committee on Housing and Real Estate vote to recommend it

Passed, 9 to 5 · Oct 3, 2025

No member-by-member record exists for this vote. Committee votes and some older sessions record totals only.

Official motion: “Report passage recommended by Committee on Housing and Real Estate, Ayes 9, Noes 5”. Official record · This vote on its own page

Assembly vote

Passed, 54 to 41 · Oct 7, 2025 · 4 didn't vote

See how each of the 99 representatives voted

D: Democrat, R: Republican

Yes (54)

No (41)

Didn't vote (4)

Official motion: “SHALL THE DECISION OF THE CHAIR STAND”. Official record · This vote on its own page

Senate Committee on Licensing vote to recommend it

Passed, 3 to 2 · Nov 7, 2025

No member-by-member record exists for this vote. Committee votes and some older sessions record totals only.

Official motion: “Report concurrence recommended by Committee on Licensing, Regulatory Reform, State and Federal Affairs, Ayes 3, Noes 2”. Official record · This vote on its own page

Senate vote to pass it

Passed, 20 to 13 · Nov 18, 2025

See how each of the 33 senators voted

D: Democrat, R: Republican

Official motion: “CONCURRENCE”. Official record · This vote on its own page

What happened

  1. May 13, 2026

    The veto stood. Lawmakers didn't override it.

  2. Dec 5, 2025

    The governor vetoed it.

  3. Dec 4, 2025

    Sent to the governor.

  4. Nov 18, 2025

    The Senate passed it too, 20 to 13.

  5. Nov 7, 2025

    The committee voted to recommend passing it, 3 to 2.

  6. Nov 5, 2025

    The committee held a public hearing.

  7. Oct 9, 2025

    A state agency sent in its estimate of the cost.

  8. Oct 8, 2025

    Sent to the Senate Committee on Licensing, Regulatory Reform, State and Federal Affairs.

  9. Oct 7, 2025

    The Senate received it.

  10. Oct 7, 2025

    The Assembly passed it.

  11. Oct 7, 2025

    “Point of order that Assembly Substitute Amendment 1 not germane under Assembly Rule 54 (3)(f) well taken” (the official wording)

  12. Oct 7, 2025

    A state agency sent in its estimate of the cost.

  13. Oct 3, 2025

    The committee voted to recommend passing it, 9 to 5.

  14. Sep 30, 2025

    The committee held a public hearing.

  15. Sep 30, 2025

    2 more representatives and 1 senator signed on in support.

  16. Sep 25, 2025

    Sent to the Assembly Committee on Housing and Real Estate.

  17. Sep 25, 2025

    Introduced in the Assembly.

See the official record, word for word
  1. Sep 25, 2025 · Assembly

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

  2. Sep 25, 2025 · Assembly

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

  3. Sep 30, 2025 · Assembly

    Representatives Steffen and B. Jacobson added as coauthors

  4. Sep 30, 2025 · Assembly

    Senator Kapenga added as a cosponsor

  5. Sep 30, 2025 · Assembly

    Public hearing held

  6. Oct 2, 2025 · Assembly

    Assembly Amendment 1 offered by Representative Clancy

  7. Oct 2, 2025 · Assembly

    Executive action taken

  8. Oct 3, 2025 · Assembly

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

  9. Oct 3, 2025 · Assembly

    Referred to calendar of 10-7-2025

  10. Oct 7, 2025 · Assembly

    Fiscal estimate received

  11. Oct 7, 2025 · Assembly

    Read a second time

  12. Oct 7, 2025 · Assembly

    Assembly Substitute Amendment 1 offered by Representative Haywood

  13. Oct 7, 2025 · Assembly

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

  14. Oct 7, 2025 · Assembly

    Decision of the Chair appealed

  15. Oct 7, 2025 · Assembly

    Decision of the Chair upheld, Ayes 54, Noes 41

  16. Oct 7, 2025 · Assembly

    Ordered to a third reading

  17. Oct 7, 2025 · Assembly

    Rules suspended

  18. Oct 7, 2025 · Assembly

    Read a third time and passed

  19. Oct 7, 2025 · Assembly

    Ordered immediately messaged

  20. Oct 7, 2025 · Senate

    Received from Assembly

  21. Oct 8, 2025 · Senate

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

  22. Oct 9, 2025 · Senate

    Fiscal estimate received

  23. Nov 5, 2025 · Senate

    Public hearing held

  24. Nov 7, 2025 · Senate

    Executive action taken

  25. Nov 7, 2025 · Senate

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

  26. Nov 7, 2025 · Senate

    Available for scheduling

  27. Nov 14, 2025 · Senate

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

  28. Nov 18, 2025 · Senate

    Read a second time

  29. Nov 18, 2025 · Senate

    Ordered to a third reading

  30. Nov 18, 2025 · Senate

    Rules suspended to give bill its third reading

  31. Nov 18, 2025 · Senate

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

  32. Nov 18, 2025 · Senate

    Ordered immediately messaged

  33. Nov 19, 2025 · Assembly

    Received from Senate concurred in

  34. Nov 19, 2025 · Assembly

    Report correctly enrolled on 11-19-2025

  35. Dec 4, 2025 · Assembly

    Presented to the Governor on 12-4-2025

  36. Dec 5, 2025 · Assembly

    Report vetoed by the Governor on 12-5-2025

  37. May 12, 2026 · Assembly

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

  38. May 13, 2026 · Assembly

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

Terms on this page

Veto override

Lawmakers can still pass a bill the governor vetoed, but it takes two-thirds of each chamber.

More in the glossary

Legislative Reference Bureau

The Legislature's nonpartisan office that drafts bills and writes the summary at the top of each one.

Official term: LRB analysis. More in the glossary

Author

A lawmaker who formally puts a bill forward. The text itself is drafted by the Legislative Reference Bureau.

Official term: Author, coauthor. More in the glossary

Signed on in support

Lawmakers who back a bill without being one of its authors, often from the other chamber.

Official term: Cosponsor. More in the glossary

Cost estimate

A state agency's estimate of what a bill would cost or save.

Official term: Fiscal estimate. More in the glossary

Roll call

A vote where each lawmaker's yes or no is recorded by name.

Official term: Roll call vote. More in the glossary

From the Wisconsin Legislature's official record, checked Sep 15, 2026. See the source

Veto override

Lawmakers can still pass a bill the governor vetoed, but it takes two-thirds of each chamber.

More in the glossary

Legislative Reference Bureau

The Legislature's nonpartisan office that drafts bills and writes the summary at the top of each one.

Official term: LRB analysis

More in the glossary

Author

A lawmaker who formally puts a bill forward. The text itself is drafted by the Legislative Reference Bureau.

Official term: Author, coauthor

More in the glossary

Signed on in support

Lawmakers who back a bill without being one of its authors, often from the other chamber.

Official term: Cosponsor

More in the glossary

Cost estimate

A state agency's estimate of what a bill would cost or save.

Official term: Fiscal estimate

More in the glossary

Roll call

A vote where each lawmaker's yes or no is recorded by name.

Official term: Roll call vote

More in the glossary