Can You Refuse a Breathalyzer in Michigan? PBT vs. Chemical Test

Yes, you can refuse a breathalyzer in Michigan, but refusing the evidential chemical test after a lawful OWI arrest triggers an automatic one-year driver’s license suspension, six points on your record, and no restricted license unless a judge grants one on appeal. Those penalties come from the Secretary of State and apply whether or not you are ever convicted of drunk driving. And refusing the test often doesn’t stop the police from getting your blood anyway.

Which Test Are You Refusing?

Michigan has two different breath tests, and the penalty for saying no depends entirely on which one is in front of you.

The Preliminary Breath Test (PBT) is the handheld device an officer uses at the roadside before deciding whether to arrest you. For drivers 21 and older, refusing a PBT is a civil infraction with a fine of up to $200. No license suspension. No points.

The evidential chemical test is the one administered after arrest, usually a Datamaster breath test at the station, or a blood or urine test. This is the test governed by Michigan’s implied consent law.1Michigan Legislature. Michigan Code 257.625c – Consent to Chemical Tests By driving on any Michigan road or area open to vehicles, you’ve already agreed to take it if you are lawfully arrested for an OWI-related offense. When people talk about losing a license for “refusing a breathalyzer,” this is the test they mean.

What Refusing the Chemical Test Costs You

The consequences come from the Michigan Secretary of State and are separate from any criminal OWI case.

These penalties attach to the refusal itself. Even if the OWI case is later dismissed, the suspension stands unless you successfully challenge it.

You Have 14 Days to Request a Hearing

After a refusal, the arresting officer files a report with the Secretary of State and you receive a notice of the pending suspension. From the date of that notice, you have 14 days to request an implied consent hearing.2Michigan Legislature. Michigan Compiled Laws 257.625f – Effect of Failure to Submit to Chemical Test Miss it, and the suspension takes effect automatically. There is no extension.

The hearing is narrow. It covers only four questions: whether the officer had reasonable grounds to believe you committed an OWI-related offense, whether you were lawfully arrested, whether you were properly advised of your rights regarding the chemical test, and whether you actually refused.2Michigan Legislature. Michigan Compiled Laws 257.625f – Effect of Failure to Submit to Chemical Test If the officer can’t establish all four, the suspension gets thrown out. The hearing must be scheduled within 45 days of arrest and resolved within 77 days.

No Restricted License Without a Court Appeal

This is the detail that most surprises drivers. After a refusal, the Secretary of State cannot issue a restricted license. There is no work permit, no school route, nothing. Your only path to any driving privileges during the suspension is to appeal the hearing outcome to a circuit court judge in your county, and the court will weigh any prior refusals or drunk driving incidents. A clean record helps; a history of either makes approval unlikely.

That is why refusal often backfires. A driver who takes the test, fails, and is convicted of a first-offense OWI will frequently qualify for restricted driving privileges fairly quickly. A driver who refuses may sit out a full year with no legal way to drive.

Police Can Still Get Your Blood

Refusing does not keep a sample out of the officer’s hands. If there is probable cause to believe you are impaired, police can seek a search warrant for a blood draw. Warrants can be obtained quickly, sometimes by phone, and the draw is typically done at a hospital. The results are fully admissible. So a refusal can trigger every administrative penalty above and still produce the very evidence the refusal was meant to prevent.

Can the Refusal Itself Be Used in Court?

A prosecutor is allowed to tell the jury that a test was offered and you declined, but only for that limited purpose. The refusal cannot be presented as evidence of guilt, and the judge must instruct the jury on that limitation.5Michigan Legislature. Michigan Compiled Laws 257.625a Juries are human, though, and hearing about a refusal rarely helps a defendant.

Commercial Drivers Face Much Harsher Rules

If you hold a CDL, a refusal triggers an additional layer of consequences under both state and federal law. Federal rules treat CDL holders as having given implied consent to alcohol testing whenever they operate a commercial motor vehicle.6eCFR. 49 CFR 383.72 – Implied Consent to Alcohol Testing

Under Michigan law, a first refusal while operating a commercial vehicle suspends all vehicle group designations on the CDL for one year. A second refusal within 10 years means revocation of at least 10 years.2Michigan Legislature. Michigan Compiled Laws 257.625f – Effect of Failure to Submit to Chemical Test

Drivers Under 21

Michigan’s zero-tolerance law lets police charge a driver under 21 with OWI-Zero Tolerance for a blood alcohol content as low as 0.02, far below the standard 0.08 threshold. The implied consent penalties for refusing the post-arrest chemical test apply the same way regardless of age, but the underlying OWI charge is easier to prove against a younger driver, which makes a refusal strategy even less likely to help.