GHSA maintains data on state laws surrounding a number of highway safety issues. Below is information regarding laws in the state of Michigan. For more information, consult the State Highway Safety Office.
| Increased Penalty for High BAC | Administrative License Suspension on First Offense | Limited Driving Privileges During Suspension |
|---|---|---|
| .17 | 30-180 days | After 45 days |
Mandatory for high BAC (0.17) and repeat convictions
| Open Container Laws | Repeat Offender Laws |
|---|---|
| Yes | Yes |
Under age 8 and under 57" tall
Younger than 2 yrs, unless reached the weight or height limit set by manufacturer, must be in a rear-facing system; 2-4 yrs, unless reached the weight or height limit set by manufacturer, must be in forward-facing restraint; 5-7 yrs, unless reached height of 4 feet 9 inches, must be in a belt-positioning child booster (effective 09/25/24)
8-15 yrs or 57" or taller
Yes
Yes, handheld ban. Primary law.
Yes, Handheld ban. Primary law.
All drivers. Primary law.
4 years
None
Helmets required for riders under 21 or for riders and passengers without additional insurance. Universal helmet law repealed 2012.
Primary
16 and over
Front
None (State law requires law enforcement to witness violations)
None (State law requires law enforcement to witness violations)
| Cars (MPH) | Trucks (MPH) |
|---|---|
| 70 (75 on select segments) | 65 |
| Cars (MPH) | Trucks (MPH) |
|---|---|
| 70 | 60; 55 if speed limit for cars is less than 70 MPH |
| Cars (MPH) | Trucks (MPH) |
|---|---|
| 70 | 60; 55 if speed limit for cars is less than 70 MPH |
17 years
|
Minimum Age (Years/Months) |
Minimum Duration (Months) |
Required Supervised Driving Hours (Night Hours) |
|---|---|---|
| 14 / 9 | 6 | 50 (10) |
|
Minimum Age (Years/Months) |
Nighttime Driving Restriction |
Passenger Restriction (except family, unless noted) |
|---|---|---|
| 16 | 10 p.m. - 5 a.m. | No more than 1 under 21 |
