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.
Helmets required for riders under 21 or for riders and passengers without additional insurance. Universal helmet law repealed 2012.
4 years
None
Zero tolerance for some drugs
Legal for medical and recreational use
Zero tolerance for THC
70 (75 on select segments)
65
70
60; 55 if speed limit for cars is less than 70 MPH
70
60; 55 if speed limit for cars is less than 70 MPH
Yes
0.17
30-180 days
After 45 days
Mandatory for high BAC (0.17) and repeat convictions
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
17 years
14 / 9
6
50 (10)
16
10 p.m. - 5 a.m.
No more than 1 under 21
16 and over
Front
Primary
Yes
Yes, handheld ban. Primary law.
Yes, handheld ban. Primary law.
All drivers. Primary law.
None (State law requires law enforcement to witness violations)
n/a
None (State law requires law enforcement to witness violations)
n/a
A new survey finds that more than half of Michigan medical marijuana patients have driven within two hours of a cannabis treatment. GHSA's Russ Martin discusses why marijuana impairment is difficult to assess and how providers can help warn against impaired driving.
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Motorcycle Helmet Required?
Helmets required for riders under 21 or for riders and passengers without additional insurance. Universal helmet law repealed 2012.
Michigan Auto Law lawyers practice exclusively in helping people who have been hurt in car, truck and motorcycle crashes in the state of Michigan and provide resources on auto safety and how Michigan's complex no-fault law impacts area residents.
Length of Regular Renewal Cycle
4 years
DUID Zero Tolerance or Per se Laws for Some Drugs
Zero tolerance for some drugs.
Rural Interstates: Cars (MPH)
70 (75 on select segments)
Ignition Interlocks
Mandatory for high BAC (0.17) and repeat convictions
Child Restraint Required
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)
Full Privilege Minimum Age
17 years
