Michigan · OWI · Checked October 2026
Refusing a Breath or Blood Test in Michigan
Refusing a Breath or Blood Test in Michigan: What Are the Rules?
What happens if you refuse a breath or blood test in Michigan.
- Refusal penalty
- License suspension of 1 year, or 2 years for a second or subsequent refusal within 7 years; for a commercial vehicle, all vehicle group designations suspended for 1 year (revoked for at least 10 years for a second refusal within 10 years)
- License suspension for refusing
- 1 year (2 years for a second or subsequent refusal within 7 years)
- Deadline to challenge
- 14 days
Refusal Penalties in Michigan
license suspension of 1 year, or 2 years for a second or subsequent refusal within 7 years; for a commercial vehicle, all vehicle group designations suspended for 1 year (revoked for at least 10 years for a second refusal within 10 years)MCL 257.625f(1), (7)
License Suspension for Refusing in Michigan
1 year (2 years for a second or subsequent refusal within 7 years)MCL 257.625e, 257.625f
More on OWI Law in Michigan
See the full overview of OWI laws in Michigan and read about implied consent laws in every state.
This page summarizes Michigan law from official sources, checked October 2026. It isn't legal advice; a lawyer licensed in Michigan can advise on your case.
Frequently Asked Questions
What Happens if You Refuse a Breath Test in Michigan?
license suspension of 1 year, or 2 years for a second or subsequent refusal within 7 years; for a commercial vehicle, all vehicle group designations suspended for 1 year (revoked for at least 10 years for a second refusal within 10 years)
How Long Is the Suspension for Refusing?
1 year (2 years for a second or subsequent refusal within 7 years)