GHSA maintains data on state laws surrounding a number of highway safety issues. Below is information regarding laws in the state of Wisconsin. For more information, consult the State Highway Safety Office.

  • Alcohol Impaired Driving


    Increased Penalty for High BAC Administrative License Suspension on First Offense Limited Driving Privileges During Suspension Vehicle and License Plate Sanctions
    .17, .20 and .25 6-9 months Yes  

    Ignition Interlocks

    Mandatory for high BAC (.15 or higher) and repeat convictions


    Open Container Laws Repeat Offender Laws Alcohol Exclusion Laws Limiting Treatment
    Yes Yes Yes
  • Autonomous Vehicles

    Authorized a study on AVs.

  • Child Passenger Safety

    Child Restraint Required

    Under 1 yrs or under 20 lbs in rear-facing infant seat

    1-3 yrs or less than 40 lbs in forward-facing child safety seat

    4-7 yrs or 40-80 lbs and under 57" tall in booster seat

    3 yrs or under and less than 40 lbs in rear seat if available

    Adult Safety Belt Permissible

    8 yrs or under or 80 lbs and 57" or taller

    Maximum Fine for 1st Offense

    $175.30 if passenger under 4 yrs

    $150.10 if passenger 4-7 yrs

  • Distracted Driving

    Hand-Held Ban?

    No, except in work zones.

    All Cell Phone Ban?

    School Bus Drivers


    Novice Drivers

    Drivers with learner or intermediate license. Primary law.

    Text Messaging Ban?

    All drivers. Primary law.

  • Drug Impaired Driving

    DUID Zero Tolerance or Per se Laws for Some Drugs

    • Zero tolerance for all controlled substances.

    Marijuana-Specific Laws

    • Possession and Use: Illegal
    • Impaired Driving: Zero tolerance for delta-9-THC
  • Mature Drivers

    Length of Regular Renewal Cycle

    8 years

    Provisions for Mature Drivers


  • Motorcyclists

    Helmets required for riders under 18 or with instructional permit. Universal helmet law repealed 1978.

  • Seat Belts

    Type of Law


    Who Is Covered?

    All riders except for children properly restrained in a child safety restraint system.

    In What Seat?


    Maximum Fine for 1st Offense


  • Sobriety Checkpoints

    Checkpoints are not conducted. They are prohibited by statute.

  • Speed and Red Light Cameras

    Speed Cameras


    Red Light Cameras

    No state law or programs

  • Speeding and Aggressive Driving

    Rural Interstates

    Cars (MPH) Trucks (MPH)
    70 70

    Urban Interstates

    Cars (MPH) Trucks (MPH)
    70 70

    Other Limited Access Roads

    Cars (MPH) Trucks (MPH)
    70 70
  • Teen and Novice Drivers

    Full Privilege Minimum Age

    16 years, 9 months

    Learner Stage

    Minimum Age (Years/Months)

    Minimum Duration (Months)

    Required Supervised Driving Hours (Night Hours)

    15 / 6 6 30 (10)

    Intermediate Stage

    Minimum Age (Years/Months)

    Nighttime Driving Restriction

    Passenger Restriction (except family, unless noted)

    16 Midnight - 5 a.m. No more than 1
  • Work Zones

    Violations Affected

    Disobeying a traffic sign or signal

    Speeding/Unreasonable and imprudent speed/Too fast for conditions

    Reckless driving

    Enhanced Penalties

    Double original fine

    Workers Must Be Present?


    Signs Must Be Present?