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Bills from the 2025–26 session

Senate Bill 537

Nonfunctional and counterfeit airbags and providing a penalty

Topics: Crime and criminals: Felony, Fines, Fraud, Legislature: Criminal Penalties, Joint Review Committee on, Motor vehicle: Equipment

Became law

The governor signed it on Mar 13, 2026. It's ⁠.

  1. Introduced, passed

    Oct 17, 2025

  2. Committee, passed

    Approved

  3. Senate vote, passed

    Passed Nov 18, 2025

  4. Assembly vote, passed

    Passed Jan 15, 2026

  5. Governor, passed

    Signed

  6. Law, here now

    2025 Wisconsin Act 97

Latest entry in the official record, Mar 13, 2026: “Published 3-14-2026”

Read the bill

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The same bill was also filed in the Assembly as AB 523. That version died when the session ended.

What it does

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

Under current law, a person is prohibited from selling, installing, reinstalling, or distributing a previously deployed airbag or concealing a missing or previously deployed airbag. Violations of these prohibitions are punishable by a $5,000 fine or imprisonment of up to one year, or both.

This bill expands these prohibitions to importing, manufacturing, or offering for sale a previously deployed airbag and creates similar prohibitions relating to nonfunctional and counterfeit airbags. Under the bill, “nonfunctional airbag” means a replacement airbag that 1) was previously deployed or damaged; 2) has an electric fault that is detected by the motor vehicle’s diagnostic system; 3) includes a part or object intended to mislead the owner or operator of the motor vehicle into believing that a functional airbag has been installed; or 4) is prohibited from being sold under federal law. Under the bill, “counterfeit airbag” means a replacement airbag, or an airbag component, that displays an unauthorized mark substantially similar to the mark of an original equipment manufacturer or a genuine supplier of parts to the manufacturer of a motor vehicle.

Read the full summary

The bill retains the current penalty for a first offense and provides for increased penalties for repeat offenses and offenses that result in bodily harm or great bodily harm to a person or the death of a person.

Because this bill creates a new crime or revises a penalty for an existing crime, the Joint Review Committee on Criminal Penalties may be requested to prepare a report.

Who's behind it

3 senators are its ⁠. All 3 are Republicans.

12 more lawmakers ⁠.

See all 15 names

Authors (3)

Signed on in support (12)

How lawmakers voted

There was one vote on this bill.

Senate Committee on Judiciary and Public Safety vote to recommend it

Passed, 8 to 0 · Nov 12, 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 Judiciary and Public Safety, Ayes 8, Noes 0”. Official record · This vote on its own page

What happened

  1. Mar 13, 2026

    The new law was published.

  2. Mar 13, 2026

    The governor signed it. It became 2025 Wisconsin Act 97.

  3. Mar 12, 2026

    Sent to the governor.

  4. Feb 9, 2026

    1 more representative signed on in support.

  5. Jan 15, 2026

    The Assembly passed it too.

  6. Jan 12, 2026

    Sent to the Assembly Committee on Rules.

  7. Jan 12, 2026

    1 more representative signed on in support.

  8. Nov 19, 2025

    The Assembly received it.

  9. Nov 18, 2025

    The Senate passed it.

  10. Nov 18, 2025

    1 more senator signed on in support.

  11. Nov 12, 2025

    The committee voted to recommend passing it, 8 to 0.

  12. Oct 29, 2025

    The committee held a public hearing.

  13. Oct 17, 2025

    Sent to the Senate Committee on Judiciary and Public Safety.

  14. Oct 17, 2025

    Introduced in the Senate.

See the official record, word for word
  1. Oct 17, 2025 · Senate

    Introduced by Senators Wanggaard, Nass and Marklein; cosponsored by Representatives Melotik, Behnke, Dittrich, Kreibich, Maxey, Miresse, Piwowarczyk, Sinicki and Subeck

  2. Oct 17, 2025 · Senate

    Read first time and referred to Committee on Judiciary and Public Safety

  3. Oct 29, 2025 · Senate

    Public hearing held

  4. Nov 12, 2025 · Senate

    Executive action taken

  5. Nov 12, 2025 · Senate

    Report passage recommended by Committee on Judiciary and Public Safety, Ayes 8, Noes 0

  6. Nov 12, 2025 · Senate

    Available for scheduling

  7. Nov 14, 2025 · Senate

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

  8. Nov 18, 2025 · Senate

    Senator Ratcliff added as a coauthor

  9. Nov 18, 2025 · Senate

    Read a second time

  10. Nov 18, 2025 · Senate

    Ordered to a third reading

  11. Nov 18, 2025 · Senate

    Rules suspended to give bill its third reading

  12. Nov 18, 2025 · Senate

    Read a third time and passed

  13. Nov 18, 2025 · Senate

    Ordered immediately messaged

  14. Nov 19, 2025 · Assembly

    Received from Senate

  15. Jan 12, 2026 · Assembly

    Representative Penterman added as a cosponsor

  16. Jan 12, 2026 · Assembly

    Read first time and referred to committee on Rules

  17. Jan 13, 2026 · Assembly

    Placed on calendar 1-15-2026 by Committee on Rules

  18. Jan 15, 2026 · Assembly

    Rules suspended to withdraw from calendar and take up

  19. Jan 15, 2026 · Assembly

    Read a second time

  20. Jan 15, 2026 · Assembly

    Ordered to a third reading

  21. Jan 15, 2026 · Assembly

    Rules suspended

  22. Jan 15, 2026 · Assembly

    Read a third time and concurred in

  23. Jan 15, 2026 · Assembly

    Ordered immediately messaged

  24. Jan 16, 2026 · Senate

    Received from Assembly concurred in

  25. Jan 20, 2026 · Senate

    Report correctly enrolled

  26. Feb 9, 2026 · Senate

    Representative J. Jacobson added as a cosponsor

  27. Mar 12, 2026 · Senate

    Presented to the Governor on 3-12-2026

  28. Mar 13, 2026 · Senate

    Report approved by the Governor on 3-13-2026. 2025 Wisconsin Act 97

  29. Mar 13, 2026 · Senate

    Published 3-14-2026

Terms on this page

Wisconsin Act

The number a bill gets when it becomes law, like 2025 Wisconsin Act 12.

Official term: Act. 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

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

Wisconsin Act

The number a bill gets when it becomes law, like 2025 Wisconsin Act 12.

Official term: Act

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

Author

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

Official term: Author, coauthor

Signed on in support

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

Official term: Cosponsor

Roll call

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

Official term: Roll call vote