New Wisconsin laws taking effect December 11, 2025

29 laws take effect December 11, 2025.

Of the 247 bills enacted since 2025, 245 have an effective date and 2 don't yet (listed below). A law here takes effect that day by its main provisions; parts of a staggered act may take effect on other dates.

Updated Oct 31, 2026 at 7:42 a.m. EDT.

Crime (5)

  • AB 136 · 2025 Regular SessionDerived

    classification of the crime of impersonating law enforcement officers, fire fighters, and certain other emergency personnel and providing a penalty

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • AB 153 · 2025 Regular SessionDerived

    income change notifications for child support or maintenance orders

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • AB 265 · 2025 Regular SessionDerived

    human trafficking and trafficking of a child and providing a penalty

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    Parts of this act take effect on other dates.

    How effective dates are worked out

  • SB 279 · 2025 Regular SessionDerived

    grants to law enforcement agencies for data-sharing platforms

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • SB 423 · 2025 Regular SessionDerived

    the time limitation on prosecution for hiding a corpse

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Traffic (5)

  • AB 221 · 2025 Regular SessionDerived

    all-terrain vehicles and utility terrain vehicles with out-of-state registrations

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • AB 271 · 2025 Regular SessionDerived

    camera monitor systems as an alternative to mirrors for commercial motor vehicles

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • AB 302 · 2025 Regular SessionDerived

    authorized lights for funeral procession vehicles

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • AB 409 · 2025 Regular SessionDerived

    passing certain vehicles stopped on or near a highway and providing a penalty

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • SB 422 · 2025 Regular SessionDerived

    designating the Greg Quinn and Larry Millard Memorial Bridge

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Government (4)

  • SB 162 · 2025 Regular SessionDerived

    bid requirement for publication and printing of county board proceedings, notices, and advertisements in counties having a population of 250,000 or more and at least two English newspapers published daily

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • SB 310 · 2025 Regular SessionDerived

    time limits on local unit of government chief executive officer emergency power proclamations

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • SB 358 · 2025 Regular SessionDerived

    fees charged for certain coroner or medical examiner services

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • SB 440 · 2025 Regular SessionDerived

    newspaper publication and typeface for certain legal notices

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Healthcare (4)

  • AB 273 · 2025 Regular SessionDerived

    the membership of the Controlled Substances Board

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • AB 294 · 2025 Regular SessionDerived

    membership on the Board of Nursing

    How we got this date
    This act takes effect on the day after publication, except as follows:

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    Parts of this act take effect on other dates.

    How effective dates are worked out

  • AB 388 · 2025 Regular SessionDerived

    grant program for an integrated mental health facility

    How we got this date
    This act takes effect on the day after publication, except as follows:

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    Parts of this act take effect on other dates.

    How effective dates are worked out

  • SB 190 · 2025 Regular SessionDerived

    ratification of the Respiratory Care Interstate Compact

    How we got this date
    This act takes effect on the day after publication, except as follows:

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    Parts of this act take effect on other dates.

    How effective dates are worked out

Education (3)

  • AB 74 · 2025 Regular SessionDerived

    parental notification of alleged sexual misconduct by a school staff member

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • SB 11 · 2025 Regular SessionDerived

    allowing representatives of certain federally chartered youth membership organizations to provide information to pupils on public school property

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • SB 210 · 2025 Regular SessionDerived

    changes to amount of, and criteria for designating recipients of, academic excellence higher education scholarships

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Housing (2)

  • AB 424 · 2025 Regular SessionDerived

    requirements for the rental of mobile and manufactured homes

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

  • SB 193 · 2025 Regular SessionDerived

    revoking a transfer of real property on death, obtaining evidence of the termination of a decedent’s property interests, disbursing deposits after rescission of real property wholesaler contracts, and filing satisfactions of judgment

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Agriculture (1)

  • SB 164 · 2025 Regular SessionDerived

    use of certified seed potatoes in planting potatoes and providing a penalty

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Civil Rights (1)

  • AB 123 · 2025 Regular SessionDerived

    calculation of miles for purposes of relocation of a child 100 miles or more from the other parent in an action affecting the family

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Climate (1)

  • SB 421 · 2025 Regular SessionDerived

    a grant for modernization of a dam in the village of Rothschild

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Elections (1)

  • SB 215 · 2025 Regular SessionDerived

    town clerk and treasurer appointments, publication requirements for proposed budget summary and notice of public hearing, and discontinuance of highways

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Taxes (1)

  • AB 280 · 2025 Regular SessionDerived

    workforce housing and childcare awards under the business development tax credit

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Wages (1)

  • SB 374 · 2025 Regular SessionDerived

    exemptions from minimum wage, overtime pay, and recordkeeping requirements for minor league baseball players

    How we got this date

    Wis. Stat. §§991.11, 35.095(1); Wis. Const. art. IV §17(2): the text sets no date of its own, so the state's default rule applies.

    Published Dec 10, 2025 → + 1 days Dec 11, 2025

    How effective dates are worked out

Enacted, but not yet dated (2)

These laws' texts tie their dates to something outside the legislative record (Contingent), or not enough is recorded yet to give one (Unresolved). They may take effect December 11, 2025 too; the record doesn't say.

Show all 2
  • AB 80Contingentratification of the Social Work Licensure CompactCompact statute is enacted into law in the 7th member state
  • SB 248Contingentlicense eligibility and restriction extensions relating to ignition interlock devicesTakes effect on the first day of the 12th month beginning after the date specified in the notice published in the Wisconsin administrative register under Section 17 (2)