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Bills · 2025-2026 Regular Session

SB 537

Became law Official bill text Atom feed

Relating to: nonfunctional and counterfeit airbags and providing a penalty.

Crime and criminals — Felony Fines Fraud Fuel Legislature — Criminal penalties joint review committee on Motor vehicle — Equipment

  1. Introduced, completed
  2. Passes Senate, completed
  3. Passes Assembly, completed
  4. Governor signs, completed
  5. Law, completed

Unfamiliar terms? Glossary

What this bill does

Plain-language analysis by the nonpartisan Legislative Reference Bureau

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.

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.

Sponsors

Introduced by: Marklein (R) , Nass (R) , Wanggaard (R)

12 cosponsors

Behnke (R) , Dittrich (R) , J. Jacobson (D) , Kreibich (R) , Maxey (R) , Melotik (R) , Miresse (D) , Penterman (R) , Piwowarczyk (R) , Ratcliff (D) , Sinicki (D) , Subeck (D)

Registered lobbying interests · 9

Organizations that registered lobbying activity on this bill with the Wisconsin Ethics Commission. Registration means interest, not a position for or against. Official record

Votes

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

Passed 8–0 Nov 12, 2025 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Full history

  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

    Rules suspended to give bill its third reading

  9. Nov 18, 2025 · Senate

    Read a third time and passed

  10. Nov 18, 2025 · Senate

    Ordered immediately messaged

  11. Nov 18, 2025 · Senate

    Senator Ratcliff added as a coauthor

  12. Nov 18, 2025 · Senate

    Read a second time

  13. Nov 18, 2025 · Senate

    Ordered to a third reading

  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